The history of the beautiful city of Florence dates to the early Middle Ages and is intertwined with that of the remarkable Medici family. Their very name suggests a medical origin, and legend has it that an early Medici was physician to Charlemagne. As early as the 1200s, Chiarissimo di Giambuono (de’ Medici) is reported to have engaged in commerce, and later Averardo di Chiarissimo de’ Medici expanded the business, moving to the city from the rural Mugello and establishing the family among those prosperous guild citizens who formed the backbone of Florentine society. Their earliest coat of arms, six pale red balls on a golden shield, may once have represented medicinal pills or cupping glasses. As the family’s wealth grew through trade and finance, they also came to symbolize coins, a shift mirroring their evolution from medicine to economics and politics.

In Florence, plagues still swept through the city’s narrow streets with terrible regularity, The Black Death of 1348 killed more than half the population. Leprosy, malaria, and dysentery haunted the poorer quarters, while famine and floods compounded the people’s misery. Yet Florence’s response to all these calamities also revealed one of its greatest strengths, a culture of organized charity. Hospitals, hospices, and confraternities became as much a part of the city’s landscape as its markets and churches.

In 1288, Folco Portinari, father of Dante’s beloved Beatrice, founded the famous Ospedale di Santa Maria Nuova. It represented a new model of urban care, with chapels, wards, and pharmacies. The Medicis’ success in trade also led to increased but cautious political influence. They avoided the arrogance of the older noble families and instead aligned themselves with the Guelphs, supporters of the papacy against the imperial Ghibellines. This alliance would someday make the Medici bankers of the Holy See itself.

Salvestro de’ Medici, Gonfaloniere di Giustizia around 1370, was an early architect of the Medicis’ political strategy. He supported the Ciompi uprising, a short-lived revolt of the lower classes seeking representation. Whether motivated by sympathy or strategy, Salvestro’s stance earned the Medici a reputation as protectors of popular liberty and civic balance.

Responsible for the true rise of the Medici, however, was Giovanni di Bicci de’ Medici (1360–1429). In 1397, he established the Medici Bank, which became one of Europe’s leading financial institutions. In 1410, he financially supported John XXIII during the Western Schism (who was later recognized as an antipope) and secured papal banking privileges. Yet even as his wealth soared, Giovanni maintained a republican humility, avoiding ostentation, cultivating goodwill among the people, and lending discreetly to both the papacy and the Florentine government. He ensured that the Medici name was associated with stability and trust, a legacy that his son Cosimo would expand into political dominance.

It was indeed Cosimo de’ Medici the Elder (1389–1464) who carried this vision further. Among his many achievements, he transformed hospitals into architectural and spiritual landmarks. Under his guidance, the Medici funded renovations at Santa Maria Nuova, improving its wards and medical facilities, as well as sponsoring hospitals beyond Florence, in Prato and Mugello, thus extending care to rural populations. Cosimo believed that charity, like credit, must be extended wisely where it could restore life and confidence.

The Medici’s hospital patronage also reshaped the visual culture of charity. Inspired by their ideals, in 1419, architect Filippo Brunelleschi designed the Ospedale degli Innocenti (originally a foundlings hospital). Later Medicis continued to fund hospitals, churches, medical research, and public health measures. Their generosity blossomed into the patronage of Brunelleschi, Donatello, and Botticelli, which laid the foundations of the splendid city of their successors and that which we know today.