Florence originated as a Roman city, and later, after a period as a flourishing trading and banking medieval commune, it was the birthplace of the Italian Renaissance (or the "Florentine Renaissance"). Almost all the writers and poets in the Italian literature of the golden age are somewhat connected with Florence, leading ultimately to the adoption of the Florentine dialect, above all the local dialects, as a literary language of choice.
Starting from the late Middle Ages, Florentine money—in the form of the gold florin—financed the development of industry all over Europe, from Britain to Bruges, to Lyon and Hungary. Florentine bankers financed the English kings during the Hundred Years War, as well as the papacy, including the construction of their provisional capital of Avignon and, after their return to Rome, the reconstruction and Renaissance embellishment of the latter.
Florence was home to the Medici, one of history's most important noble families. Lorenzo de' Medici was considered a political and cultural mastermind of Italy in the late 15th century. Two members of the family, were popes as Leo X and Clement VII in the early 16th century. Catherine de Medici, married king Henry II of France and, after his death in 1559, reigned as regent in France. The Medici reigned Grand Dukes of Tuscany starting with Cosimo I de' Medici in 1569, until the death of Gian Gastone de' Medici in 1737.