Florin - Martin I Barcelona

Martin I inherited the Crown of Aragon in 1396 following the extinction of the direct Aragonese male line, and his reign saw Catalonia's gold florin production continue under Barcelona's mint with characteristic consistency. The Aragonese florin itself traced back to a deliberate 1346 imitation of the Florentine florin — fineness intentionally set slightly below the Florentine standard to protect local commerce while maintaining international credibility.

Martin died in 1410 without a legitimate heir, triggering the Compromise of Caspe and ending the House of Barcelona entirely. Coins struck in his final years effectively closed a dynastic chapter that had run unbroken since the ninth century.