Republic of Florence

A commune that outlived its overlord

formationDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

By 1102, Florence was already governing itself through consuls - magistrates who "guided everything, and governed the city, and decided causes, and administered justice," in the words of the chronicler Villani, serving one-year terms and answerable to a senate of a hundred "buoni uomini," worthy citizens of standing. How much earlier this system had taken root is impossible to say with certainty; it did not yet exist in 897, and the record of individual consuls' names grows reliable only from 1138 onward, when their number is known to have ranged from four to as many as eleven depending on the year.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · George M. Groutas · CC BY 2.0

An overlord who barely appears in the record

For a city whose own later history is inseparable from the great Countess Matilda of Tuscany in the popular imagination, Florence's own chronicles say remarkably little about her directly. The brief notices that survive record chiefly her wars against the German emperor Henry IV on behalf of the Church, and finally, in a single terse line: "In this year (1115) died the Countess Matilda." That sparse treatment is itself telling. Whatever feudal claim Matilda's own office carried over Florence, the city's actual government - the consuls, their senate, their year-by-year administration of justice - had already been running for a decade or more before her death, largely independent of whatever authority she nominally held.

Independence as an accomplished fact rather than a single grant

Matilda's death is remembered as the moment that removed the last feudal claim standing above the commune, but it did not create Florence's own self-government - it simply cleared away whatever outside authority might otherwise have contested a system already functioning in practice. The city that emerged from this period was, by every account, prosperous and expanding: its walls were extended in 1078 to accommodate a population historians estimate at seventy to eighty thousand, and its consuls, whatever the looseness of the record naming them, had already begun sending expeditions against rival strongholds in the surrounding countryside years before Matilda's own death removed any question of whose authority those expeditions answered to.

A wedding that began a civil war

expansionDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

Florence's twelfth-century prosperity did nothing to spare it the factional violence that split most of Italy's communes into rival camps, and the chroniclers traced the whole Guelph-Ghibelline divide in Florence back to a single broken marriage promise in 1215.

A jilted bride and a proverb about a deed done

Buondelmonte de' Buondelmonti, a young nobleman celebrated for his good looks, had agreed to marry a niece of Oddo Arringhi de' Fifanti as compensation for wounding Oddo in a brawl. Two days before the betrothal, Monna Gualdrada de' Donati lured him to her house, showed him her own beautiful daughter, and taunted him for marrying out of fear rather than choice. Buondelmonte broke his engagement publicly and betrothed himself to the Donati girl instead - an insult the Amidei family's allies met in council with a warning from Mosca de' Lamberti that became proverbial in Florence ever after: "Beat him or mark him as you will, but if you stop there, you may as well dig your own graves. Let him die - a deed done has a head." On Easter Sunday, as the wedding party crossed the Ponte Vecchio, Schiatta de' Lamberti struck Buondelmonte from his horse with an iron mace and Oddo himself cut his throat. His bride rode the funeral bier back through the city with his head in her lap. "On that day," wrote the chronicler Villani, "began the ruin of Florence" - the noble families split permanently into the Guelph faction, which backed the Buondelmonti's kin and papal authority, and the Ghibelline faction, loyal to the emperor.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Jan Drewes · CC BY-SA 4.0

A battle that colored a river red

The feud simmered through the century as Florence's own consular and then podestà-led government tried, with limited success, to keep both factions inside one city administration. It broke into open war after the death of Emperor Frederick II left his illegitimate son Manfred contesting Sicily and the Ghibelline cause across Italy. In 1260, a Florentine-led Guelph coalition of more than three thousand horsemen and thirty thousand foot marched into Sienese territory to confront a Ghibelline army stiffened by German mercenaries and exiled Florentine nobles under the general Farinata degli Uberti. At the river Arbia, near a hill called Montaperti, the Florentine standard-bearer had his sword arm hacked off by Bocca degli Abati - a Ghibelline riding disguised in the Guelph ranks - who then galloped over to the enemy with his fellow conspirators, an act of betrayal Dante later punished with a permanent place among history's traitors in the Inferno. The Guelph army broke. More than 2,500 were killed and 1,500 captured; the sacred war-cart, the Carroccio, was lost with the old guardian who died defending it and three generations of his own family beside him. "On that day," Villani wrote of Montaperti in turn, "was broken and destroyed the old popular government of Florence" - the Guelphs driven into a mass exile from which the city's politics would not fully recover for another generation, until a reformer named Giano della Bella finally locked the old feudal nobility out of government for good.

Purging the old leaven

peakDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

By the late thirteenth century, Florence's wealthy merchant class - the "popolani grassi" - had grown frustrated with a government still adulterated, as they saw it, by the old feudal nobility mixed in among them. In February 1293, a group of the discontented secured the election to the Priorato of Giano della Bella, a wealthy trader who had his own grievance against the aristocracy: he had recently suffered a public insult from a member of the Frescobaldi family and was, by every account, thoroughly sincere in his outrage at the abuses he believed noble privilege had produced.

A code built to exclude, not merely to punish

Under Giano's influence, the city enacted an entirely new body of law, the Ordinances of Justice, meant not to replace existing legislation but to stand alongside it as a special instrument for controlling the nobility specifically. Every family with a knight among its members was barred from holding office. A new magistracy, the Gonfaloniere di Giustizia, was created to preside over the Priori and given command of a thousand armed men - the "gonfalone," the standard he carried, giving the office the name by which it would be known for the rest of the Republic's history. Any noble who killed a commoner, or who procured someone else to do so, faced beheading, the destruction of his house, and the forfeiture of his entire estate to the Commune. Seventy-two noble families were named and permanently barred from any future office in the city.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Zairon · CC BY 4.0

A reformer undone by the very mob he empowered

The proscription did not sit quietly. A wave of conspiracies and street violence followed, and Giano della Bella himself, ironically, became one of its earliest casualties. A brawl between two nobles - one of them Corso Donati, an especially unpopular figure - ended with a Podestà ruling unjustly in Donati's favor, provoking a riot in which the crowd nearly killed the Podestà outright. Giano went out among the rioters hoping his own influence would calm them; instead he barely escaped with his life, and by the next day, nobles who had been quietly stoking popular anger against him found the "popolani grassi" themselves turning on their own champion. Giano fled the city rather than wait to be formally exiled, and died in France not long after - proof, in the judgment of the historian recounting it, of how frequently the makers of great reforms become the reforms' own first victims.

Twenty-eight hours as Lord of Florence

peakDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

Even the Ordinances of Justice had not extended political rights to Florence's own lowest ranks of labor - the wool-carders and combers whose work sustained the city's most important industry, but who belonged to no guild with any voice in government at all. In the summer of 1378, after a government crackdown on their attempts to organize, these workers - contemptuously nicknamed the "Ciompi" - rose in open revolt.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Txllxt TxllxT · CC BY-SA 4.0

A palace surrendered without a fight

The uprising reached its climax when the ruling Signory itself lost its nerve. Two Priors who had sworn to remain at their posts in the Palazzo regardless of danger found, when they went looking for their colleagues, that every other member of the government had already slipped away to the safety of their own homes. Concluding the cause was lost, the two remaining Priors handed the palace keys to a tavern-keeper acting as the mob's own representative and went home themselves. The gates were thrown open, and the crowd surged in.

A wool-comber given the city outright

Among those who entered was Michele di Lando, a foreman in a wool workshop, bare-legged and shoeless, carrying a standard seized from a government office. He walked straight to the Signory's own audience chamber and stood there - and the crowd, by simple acclamation, declared him Gonfaloniere and Lord of Florence. For more than twenty-eight hours, by a contemporary chronicler's own astonished reckoning, an ordinary wool-comber held absolute power over the city. He used it, remarkably, to begin restoring order rather than to entrench himself: he had a new Signory elected by the ordinary constitutional process of balloting, with three Priors drawn from the greater guilds, three from the lesser, and three - for the first time in Florence's history - from the ranks of the "popolo minuto," the common people who had never before held office at all.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Sailko · CC BY 2.5

A revolution that consumed its own gains within weeks

The new arrangement did not last. When some of Lando's own former comrades continued occupying the streets around the Piazza rather than disperse, Lando himself, now the city's own Gonfaloniere, charged them on horseback and scattered them by nightfall. His successor as Gonfaloniere, another wool-comber named Jacopo Baraccio, proved an embarrassment even to the very workers who had helped install him - contemporaries could not stomach the sight of a man who had been carrying wool bales the day before dressed in the robes of state. Within weeks, an assembly of the guilds deposed Baraccio, barred anyone outside the twenty-one recognized guilds from future office, annulled nearly everything enacted since the revolt began, and beheaded two of its ringleaders in the same Piazza where Lando had once stood, briefly, as Lord of Florence.

A shield of wealth

peakDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

By the 1430s, no single family carried more practical weight in Florence than the Medici, and no one recognized the danger that posed more clearly than Rinaldo degli Albizzi, leader of the rival aristocratic faction. In 1433, with the Signory under his own faction's control, Rinaldo had Cosimo de' Medici arrested and confined in the Palazzo, his life genuinely at risk, while his brother, cousin, and other relatives were sent into exile across Italy.

A blow that missed its mark

Rinaldo's own faction chose exile over execution for Cosimo himself - a decision that, in hindsight, proved the single greatest miscalculation of the whole affair. Florence, in Machiavelli's own phrase, found itself "widowed" of a citizen many still deeply admired, and the shock briefly stunned both sides of the conflict equally. But Cosimo's wealth followed him into exile at Venice more effectively than any weapon could have, and it was immediately clear to observers that he remained, in practical terms, more powerful outside Florence than Rinaldo was inside it. Rinaldo had struck at his rival without the force to make the blow permanent, and in doing so had guaranteed his own eventual ruin instead.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Rijksmuseum · CC0

A homecoming compared to a conqueror's triumph

The reversal came within a year. A new government hostile to Rinaldo's own faction took power, and Cosimo's recall followed as, in Machiavelli's words, "a matter of course." His actual return, on the 1st of October, 1434, was met with a welcome contemporaries described as unlike anything given to any citizen in living memory - "every man spontaneously saluted him as the benefactor of the people and father of his country." Rinaldo and the whole of his own faction were exiled in turn, in numbers so much larger than the previous year's proscriptions that, as one chronicler put it, "there was scarcely any town in Italy" without a Florentine exile now living in it.

A constitution left standing, and quietly hollowed out

Cosimo made no attempt to alter Florence's own republican constitution after his return. The Priori continued to be elected, the guilds continued to hold their nominal place in government, and no new office was created to formalize what had actually changed. What had changed was simpler and more durable than any office could have made it: for the rest of his life, and for six decades after his death, no Florentine government would be assembled without the Medici family's own consent - a form of rule that left every republican institution standing exactly where it had always stood, while quietly deciding, behind the scenes, who would ever sit in it.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Julian Lupyan · CC0

Murder at the elevation of the host

peakDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

By 1478, Lorenzo de' Medici, Cosimo's grandson, ruled Florence with a good deal less of his grandfather's own careful diplomacy toward rival families. Where Cosimo had married a Pazzi bride into his own house and restored the family to civic honors after decades of exclusion, Lorenzo froze the Pazzi out of every office in the Commonwealth for sixteen straight years and treated their commercial rivalry with his own bank as a genuine threat to be crushed rather than managed. Jacopo de' Pazzi, head of the family, and his nephew Francesco found allies willing to go further than exclusion: Pope Sixtus IV himself, angered by Lorenzo's own obstruction of papal ambitions in the Romagna, quietly backed a plot to remove both Lorenzo and his brother Giuliano by murder.

A plan reshuffled twice by simple bad luck

The conspirators' original plan, to strike during a banquet at the Medici villa at Fiesole, collapsed when Giuliano stayed home feeling unwell. A second attempt, planned for a dinner following mass at the cathedral, fell through the same way when word reached the plotters that Giuliano would attend the mass but skip the banquet. With time running out and the secret already spreading dangerously wide, the conspirators settled on the only setting left to them: the cathedral itself, during mass, with the elevation of the host as the signal - a moment chosen because everyone present would be kneeling, silent, and utterly predictable in their positions.

A hired soldier who would not kill within sight of Christ

Even this final plan nearly collapsed at the last moment. Giovannibattista di Montesecco, the professional soldier assigned to kill Lorenzo, refused outright, declaring he would commit murder in a private house without hesitation but could not bring himself to strike where Christ himself would witness it. Two priests were hurriedly recruited in his place - men with no similar scruple, but far less skill with a blade. At the signal, Francesco de' Pazzi and an accomplice fell on Giuliano and stabbed him nineteen times, Francesco's own fury driving the blade so wildly that he wounded his own thigh in the process. The two substitute priests attacking Lorenzo managed only a shallow cut to his neck before he threw his cloak around his arm, fought clear, and barred himself inside the cathedral's own sacristy.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Bertoldo di Giovanni · CC0

An uprising that never found its crowd

Jacopo de' Pazzi rode into the Piazza at the same moment, calling on the people to rise for their own liberty - and found, in Machiavelli's own account, that "the one was made deaf by the liberality and the good fortune of the Medici, and the other was unknown in Florence." No one answered the call. Archbishop Salviati, sent to seize the Palazzo Pubblico in a coordinated second act of the plot, was cornered by the sitting Gonfaloniere the moment his own confused, unconvincing story gave him away - and the uprising that was supposed to seize the city collapsed before Lorenzo had even emerged from his own hiding place in the sacristy.

Twenty-six corpses in one piazza

peakDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

The Gonfaloniere Cesare Petrucci, a Medici loyalist raised from obscurity entirely by the family's own patronage, did not wait for any trial once he understood what had happened. Within half an hour of the conspiracy's collapse in the cathedral, he had a rope thrown around Archbishop Francesco Salviati's neck and hanged him, still in his archbishop's vestments, from a window of the Palazzo Pubblico overlooking the Piazza

• without a moment allowed for confession or absolution.

Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Francisco Anzola · CC BY 3.0

A hunt that did not distinguish the guilty from the merely related

What followed was less a legal reckoning than a citywide manhunt. Francesco de' Pazzi, too badly wounded by his own frenzied attack on Giuliano to flee, was dragged from his sickbed naked and bleeding and hanged beside the Archbishop's own body. Within the same half hour, twenty-six corpses lay in the Piazza and several more dangled from the Palazzo's windows - everyone who had entered the building alongside Salviati, save one man discovered four days later hidden among a woodpile, more dead than alive. Jacopo de' Pazzi himself was captured and executed shortly after. Members of the family who had no part in the plot at all were swept up in the same purge: Giovanni de' Pazzi, innocent of any involvement, spent the rest of his life imprisoned in the tower of Volterra and died there in 1481, his own wife imprisoned in turn for trying to help him escape.

A city more loyal to the Medici for having tried to kill them

What the conspiracy had been designed to accomplish - the destruction of Medici power in Florence - it achieved in precisely the opposite direction. Rather than exposing Lorenzo as vulnerable, the failed attempt and its bloody aftermath left Florence's own citizens more firmly attached to the family than before, their sympathy hardened by an assassination carried out during mass and directed at two young men, one of whom had died a horrific and very public death for no clearer offense than being his brother's own brother. Sixteen years of frozen exclusion from office, a papal-blessed murder plot, and a bloodbath of reprisal had, between them, accomplished what Cosimo's own patient diplomacy toward rival families had spent a lifetime trying to avoid needing: they made Medici rule in Florence look less like one family's private ambition and more like the settled will of the city itself.

A friar with no office at all

contractionDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

Lorenzo de' Medici died in 1492, and his son Piero proved catastrophically unequal to holding what his father and great-grandfather had built. When a French army under Charles VIII invaded Italy in 1494, Piero surrendered a string of Florentine fortresses to Charles entirely on his own authority, without so much as consulting the government he supposedly led. The news triggered an immediate popular uprising. Piero fled the city, and sixty years of Medici control over Florentine government ended in a matter of days.

A vacuum filled by a preacher, not a politician

What replaced the Medici was not, at first, any clearly organized faction at all. Girolamo Savonarola, a Dominican friar who held no civic office and had built his own following purely through sermons in the Duomo warning of coming judgment, emerged as the only figure commanding enough public trust to help fill the gap. He negotiated with Charles VIII directly on the city's behalf, helped design a new constitution built around a broadly representative Great Council, and used his own pulpit to shape Florentine politics as thoroughly as any elected magistrate could have - all without ever holding a single formal position in the government he was busy remaking.

Florence, Italy · Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Museo di San Marco, Florence · CC BY 2.0

A bonfire built for an entire city's vanity

Savonarola's influence reached beyond politics into the texture of daily Florentine life. For the Carnival of 1496 - traditionally a season of licence the friar found intolerable - he organized bands of boys, dressed as angels, to go door to door collecting "vanities": cosmetics, fine dress, gaming equipment, secular books, and artwork depicting the nude human form. A huge pyramidal scaffold was built in the Piazza to burn everything collected. The painter Fra Bartolommeo, swept up in the fervor, burned his own studies from life; the artist Lorenzo di Credi did the same. Vasari records that "the loss, especially in painting, was very considerable" - a single sermon's worth of moral urgency destroying finished works and studies by some of the city's own most talented artists, offered up voluntarily by their own creators.

A theocracy with no army behind it

What Savonarola's movement never solved was the same problem every Florentine government before it had faced: how to hold power without either broad consent or force to back it up. His faction, the "Piagnoni," held genuine popular devotion for a season, but built no independent security for their own leader beyond that devotion - a vulnerability that a resurgent opposition, and an increasingly hostile papacy, would prove entirely willing to exploit once his own popularity began, even slightly, to waver.

Our Lord suffered as much for me

contractionDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

Savonarola's open defiance of Pope Alexander VI - refusing to stop preaching after his own excommunication, and denouncing the papacy's own corruption from the pulpit - cost him support in Rome long before it cost him support at home. What finally turned Florentine opinion against him was a challenge his own faction could not walk back from: a proposed ordeal by fire, in which a Franciscan and one of Savonarola's own followers, Fra Domenico, would each enter flames to prove whose faith was genuine. When the ordeal collapsed in confused argument over its own terms before either man ever stepped near the fire, the crowd that had gathered to watch it, denied its spectacle, turned its anger on Savonarola instead.

A trial that answered to politics rather than evidence

Savonarola was arrested within days and subjected to a process that made little pretense of impartial justice - a body largely composed of his own political enemies, working from confessions that his own supporters maintained were extracted under torture. He was condemned along with two of his closest followers, Fra Domenico and Fra Silvestro, to be hanged and burned in the Piazza della Signoria, the same square where his bonfires of confiscated luxuries had once drawn cheering crowds.

A composure that outlasted the crowd's contempt

Contemporary accounts describe a crowd permitted to jeer and insult the condemned men as they walked to the scaffold, and all three meeting the abuse with a composure their tormentors plainly had not expected. Fra Domenico chanted the Te Deum the entire way. When one bystander offered Savonarola a word of comfort, he answered simply, "In the hour of death, God only can comfort his creatures." Asked by another how he found the courage to face what was coming, he replied, "Our Lord suffered as much for me." Even the executioner, according to the account that survives, added deliberate cruelty to the process in an apparent bid for the crowd's own favor.

Ashes thrown in the river, and a movement that would not quite die

Florence, Italy · Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Museo di San Marco, Florence · CC BY-SA 4.0

The bodies were burned and the ashes, on the Signory's own explicit order, collected and scattered from the Ponte Vecchio into the Arno - a precaution meant to deny his followers any relic to venerate. It did not fully work. Savonarola's own Piagnoni continued to treat him as a martyred prophet for years afterward, and the theocratic experiment his own preaching had improvised, rather than the man himself, left behind a Great Council and a constitution that would structure Florentine politics for another three decades - the institutional residue of a friar who had never once held office, outlasting by far the popularity that had let him build it.

Betrayed by his own general

endDrafted from Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865)

The Medici returned to Florence in 1512 and were expelled again in 1527, in the general chaos following the Sack of Rome, giving the city one final experiment in republican government - and one final war to defend it. Pope Clement VII, himself a Medici, was determined this time to settle the question permanently, and secured the backing of Emperor Charles V's own army to do it. A combined papal and imperial force laid siege to Florence in the autumn of 1529.

Florence, Italy · Trollope, A History of the Commonwealth of Florence, from the Earliest Independence of the Commune to the Fall of the Republic in 1531 (1865) · Palazzo Vecchio, Florence · Public domain

A hero who could not save the war he had already lost

The Republic's own defense produced at least one genuine feat of arms: Francesco Ferrucci held out in the field with real skill and daring for months, tying down forces that might otherwise have pressed Florence directly. His death in battle in August 1530, alongside the rout of the army he commanded, effectively ended any realistic hope of relief from outside the walls - though the city's own defenders, by every account, remained willing to fight on rather than surrender.

A commander who killed the messenger sent to remove him

What actually ended the siege was treachery within the city's own command, not the collapse of its will to resist. Malatesta Baglioni, the condottiere general entrusted with Florence's own defense, had been secretly negotiating his own terms with the besiegers for some time. When the Signory, learning of his disloyalty, sent an envoy to formally strip him of command, Baglioni stabbed the man to death on the spot, declaring, "Go back to your masters, and tell them that they shall in spite of themselves make submission to the Pope!" He then seized the city gates by force, replaced the guards with his own men, and opened the way for the besieging army - accomplishing by betrayal what two years of siege warfare had failed to achieve outright.

Terms preserved, and a republic that ended anyway

The capitulation that followed was, on paper, remarkably gentle: its very first article promised that Florence's own form of government would be settled within four months by the Emperor, "it being always understood that liberty is to be preserved." No one who had actually witnessed the siege believed such promises would be honored by an adversary, in the words of one contemporary account, "whom no promises or treaties, howsoever solemn, could bind." Alessandro de' Medici was installed as the city's hereditary ruler under the settlement's own terms - not through any single dramatic revocation of Florence's constitution, but through the quiet, total substitution of hereditary rule for the elective one that had, with every interruption along the way, run for more than four centuries.

The lily on the crown

afterlifeDrafted from Young, The Medici (1909)

The republic's own constitutional forms did not end with the siege. For ten months after the surrender the city was governed through Baccio Valori, the Pope's own representative, with the Signoria left nominally in place around him. Alessandro de' Medici arrived from Rome the following July, styled for the time being only "head of the Republic" while a fortress was built at the centre of the northern wall to garrison the troops his coming rule would need. Only once that fortress was ready, on the first of May 1532, did Alessandro summon the Signoria and read out the Emperor's order: the Signoria abolished, the Republic ended, himself sole ruler of Florence. The great bell known as La Vacca, which had rung from the tower of the Palazzo della Signoria for generations to summon Florentines to exercise their own collective will, was pulled down that same day and broken to pieces. A contemporary diarist recorded the reason plainly: it was taken so that the city would no longer hear the sound of liberty.

When Alessandro was murdered by a cousin in 1537, the councillors who chose his successor picked an eighteen-year-old kinsman, Cosimo, on the calculation that a boy with no independent power base would be easy to manage. He spent the next three decades proving the calculation wrong.

Young, The Medici (1909) · Bronzino · Public domain

A diploma, then a crown

Cosimo's first move was not to seize authority the city had never formally given him but to have an outside power confirm it. He represented himself to the Emperor Charles V as a loyal vassal, useful against French interests in Italy, and received in return an imperial diploma granting him "all the authority formerly borne and exercised by Duke Alessandro." The document never used the word duke outright - Cosimo simply began signing himself "Duca di Fiorenza" afterward, and no one with the power to object did. A fireplace inscription from his own rooms in the Palazzo Vecchio records how he styled himself in these years: not Cosimo I, but "Cosimus Flor. Dux II" - the second Duke of Florence, counting Alessandro as the first and treating his own rule as a continuation rather than a fresh grant.

Each following step used the same method: marriage alliances upward, first to the Viceroy of Naples's daughter and then, for his own son Francis, to a Habsburg archduchess - the most exalted match the Medici had yet made, and one Cosimo hoped would eventually support a claim to something more than a ducal title. By 1569 the moment he had been building toward for years arrived. France was consumed by civil war, Spain was fighting in the Netherlands, and no power in Europe had the attention to spare for objecting to what came next: Pope Pius V, citing Cosimo's standing and his services to the Papal See, issued a bull naming him Grand Duke of Tuscany. Spain and the Empire refused to recognise the new rank at first; France and England accepted it immediately, and the rest of Europe followed within a few years.

What the crown looked like

The bull specified the crown's design in detail: radiated like an eastern king's rather than shaped like the crowns of France or Spain, its points curving outward to suggest the blades of an iris, and at its centre, set as the crown's principal jewel, a large red Florentine lily - making the crest of the old republic itself the chief jewel of the new royal crown. Cosimo was crowned in Rome the following February with full ceremony. The city that had once elected its own magistrates by lot and exiled families for reaching too far above their station now had a hereditary sovereign wearing its own civic symbol as a crown jewel, and the Medici Grand Dukes who followed him governed Tuscany under that same title for another century and a half.