Fort - Charles I

Charles I of Savoy ruled under the long shadow of his father Louis I, and his reign from 1482 to 1490 was plagued by regency disputes, Savoyard factional politics, and the encroaching ambitions of both France and the House of Sforza. The fort — a low-denomination billon piece — was the workhorse currency of everyday Savoyard commerce, depreciating steadily as the duchy's silver content eroded across successive issues.

Biaggi's classification of this type places it among the more poorly documented of Charles I's issues, with surviving examples showing considerable variation in flan quality, a consequence of inconsistent billon preparation at the Turin and Chambéry mints during this period.