Proto-Florentine Currency System

Timeline

1. 1000–1150Lucca · TuscanyIn the 11th century, Tuscan cities developed independent minting between imperial authority and local commune power, with silver denari circulating alongside Byzantine copper coins and northern Italian silver coins, providing a regional model for Florence's later autonomous minting.
2. c. 1150–1175Florence · TuscanyAfter the Florentine commune obtained minting rights, it issued local silver denari, often decorated with the lily emblem and Saint John as city-state symbols, and established a stable silver exchange network through trade with Pisa and Genoa.
3. c. 1175–1200Florence · TuscanyThe wool trade and the beginnings of banking allowed Florence to accumulate treasury reserves and cross-border settlement capacity; the commune kept accounts in silver coin and participated in Mediterranean precious-metal circulation, creating conditions for later opening international exchange markets with stable-standard gold coins.
4. c. 1200–1252Florence · TuscanyIn the first half of the 13th century, Florence perfected mint organization and fineness inspection systems, officially issuing the gold florin in 1252, replacing the previous silver-denaro-based model of large cross-border payments, and becoming one of medieval Europe's most successful city-state currencies.