The Black Death

The Black Death in Italy

Italy in the mid-fourteenth century was the most urbanised, commercially advanced, and densely populated region in Europe. Its cities — Florence, Venice, Milan, Siena, Pisa, Genoa, Naples — were centres of banking, manufacturing, long-distance trade, and artistic production. This very prosperity made Italy exceptionally vulnerable to the plague. The arrival of the disease in late 1347 unleashed a catastrophe that killed perhaps a third to two-thirds of the peninsula’s population and transformed Italian society, economy, and culture in ways that would shape the course of the Renaissance.

The First Wave: Sicily and the South

The plague entered Italy through Sicily in October 1347, when Genoese ships from Caffa docked at Messina. The disease spread rapidly through the island, devastating Messina, Catania, Palermo, and the smaller towns of the interior. Contemporary estimates of Sicilian mortality range from a third to more than half the population.

From Sicily, the plague crossed to the mainland in early 1348, striking Calabria, Apulia, and the Kingdom of Naples. Naples, with perhaps 60,000 inhabitants, was among the largest cities in Europe. The Neapolitan chronicler Bartolomeo da Neocastro reported that the city’s churches, hospitals, and streets were overwhelmed by the dead. The Angevin court of Queen Joanna I fled the city, and the queen herself retreated to Provence — inadvertently carrying the plague to Avignon and the papal court.

Florence: Boccaccio’s City

No Italian city produced a more vivid account of the Black Death than Florence, and no account has been more widely read than the introduction to Giovanni Boccaccio’s Decameron. Written in the early 1350s, Boccaccio’s introduction describes a city in social and moral collapse: families abandoned their sick, corpses piled in the streets, and the living oscillated between hedonistic excess and pious despair.

Boccaccio claimed that 100,000 people died in Florence between March and July 1348. Modern scholars consider this figure inflated — the city’s pre-plague population was approximately 90,000 to 100,000, and a death toll of 100,000 would imply total annihilation. More conservative estimates, based on tax records and the analysis of surviving family lineages, suggest that Florence lost between forty and sixty percent of its population — still an extraordinary figure that placed the city among the hardest-hit in Europe.

The Florentine chronicler Matteo Villani, who survived the plague and continued his brother Giovanni’s chronicle until his own death from plague in 1363, described the social consequences of the epidemic with remarkable precision. He noted that survivors abandoned traditional mourning customs, that burial practices were overwhelmed, and that the city’s economy was thrown into chaos as workshops closed, trade ceased, and fields lay fallow.

The impact on Florence’s economy was complex. The city’s famous textile industries — wool and silk — lost large numbers of skilled workers. The banking houses of the Bardi and Peruzzi, already weakened by the default of King Edward III of England in the 1340s, were further damaged by the loss of partners, agents, and clients. Yet the concentration of wealth among fewer survivors eventually stimulated demand for luxury goods, and Florence’s position as a centre of banking and commerce recovered relatively quickly.

Venice: The Serenissima Under Siege

Venice, the great maritime republic, was struck by plague in the spring of 1348. The city’s unique geography — a cluster of islands in a lagoon, connected to the mainland by a narrow causeway — might have provided some protection, but Venice’s role as the pre-eminent maritime trading power in the Mediterranean ensured that the disease reached it quickly. Ships arriving from the Levant, the Black Sea, and the Adriatic ports carried infected rats and fleas into the city’s crowded streets and canals.

The Venetian government’s response to the plague was among the most organised in Europe. The Great Council established a special committee of three nobles — the Provveditori alla Sanità — to coordinate the city’s response. They ordered the removal of corpses, the cleaning of streets, the isolation of the sick, and the regulation of burial practices. Venice would later pioneer formal maritime quarantine, but that system — including its dedicated isolation station on the island of Lazzaretto Vecchio — dates from the fifteenth century (the lazzaretto was founded in 1423), not from the Black Death itself.

These measures, while innovative, could not prevent the catastrophe. Contemporary estimates placed the Venetian death toll at 60 percent of the population — perhaps 70,000 to 80,000 people. The loss of experienced administrators, merchants, and sailors disrupted the republic’s commercial and naval operations for years.

Siena: A City Devastated

Siena, Florence’s rival in Tuscany, may have suffered the highest mortality of any major Italian city. The Sienese chronicler Agnolo di Tura del Grasso, who buried his five children with his own hands, left one of the most harrowing personal accounts of the plague:

“Father abandoned child, wife husband, one brother another; for this illness seemed to strike through the breath and sight. And so they died. And none could be found to bury the dead for money or friendship. Members of a household brought their dead to a ditch as best they could, without priest, without divine offices.”

Agnolo estimated that 80,000 people died in Siena and its surrounding countryside — a figure that, if accurate, would represent perhaps two-thirds of the city-state’s population. Siena’s famous banking industry, which had rivalled Florence’s, never fully recovered from the loss of partners, agents, and clients. The city’s artistic community was decimated: the great painters Pietro and Ambrogio Lorenzetti both died in 1348, likely of plague, and the distinctive Sienese school of painting, which had rivalled the Florentine tradition, was permanently diminished.

Northern Italy: Milan’s Exception

The plague’s impact across northern Italy was uneven. Most cities in the Po valley — Bologna, Verona, Padua, Mantua — suffered heavily, with mortality rates comparable to those in Tuscany. But one major city appears to have escaped relatively lightly: Milan.

The reasons for Milan’s lower mortality are debated. Some scholars credit the aggressive public health measures imposed by the city’s ruler, Archbishop Giovanni Visconti, who ordered the walls of infected houses to be sealed with the occupants inside — a brutal but potentially effective form of isolation. Others suggest that Milan’s inland position, away from the maritime trade routes that carried plague most efficiently, provided some natural protection. The Florentine chronicler Matteo Villani noted Milan’s relative immunity with evident surprise, and the city’s experience would later inform the development of more systematic quarantine measures in the Italian states.

Genoa and the Maritime Republics

Genoa, whose ships had carried the plague from Caffa to Messina, suffered its own epidemic in 1348. The Genoese chronicler Giorgio Stella described a city overwhelmed by death, with bodies thrown into mass graves or dumped at sea. The mortality was severe, though precise figures are lacking. Genoa’s commercial empire, which stretched from the Black Sea to the Atlantic, was disrupted as trading posts were abandoned and shipping routes closed.

The smaller maritime republics — Pisa, Amalfi, and Ragusa (Dubrovnik) — also suffered. Pisa, whose port connected Tuscany to the wider Mediterranean, was struck early and hard. Ragusa, on the Dalmatian coast, implemented some of the earliest formal quarantine regulations in 1377, requiring travellers from plague-infected areas to spend thirty days (later forty — hence “quarantine,” from the Italian quaranta) in isolation before entering the city.

The Papal States and Central Italy

The Papal States, which stretched across central Italy from Rome to the Adriatic, were affected by the plague, though the city of Rome itself — diminished from its ancient grandeur to a population of perhaps 20,000 to 30,000 — may have suffered less than the larger cities of the north. The papal court was at Avignon during the Black Death, and Pope Clement VI dealt with the plague from his palace in southern France.

Cultural and Intellectual Aftermath

The Black Death’s impact on Italian culture was profound and enduring. The trauma of the epidemic stimulated a renewed preoccupation with death, mortality, and the afterlife that permeated art and literature for generations. The Danse Macabre motif, the proliferation of ars moriendi texts, and the increasingly graphic depictions of the Last Judgement and the suffering of Christ all reflected the psychological impact of mass death.

At the same time, the concentration of wealth among post-plague survivors, the questioning of traditional authorities, and the renewed interest in classical learning all contributed to the cultural ferment that would eventually be called the Renaissance. The Florence that emerged from the Black Death was a city transformed — smaller, richer per capita, more socially mobile, and more intellectually adventurous than the Florence that had entered it.