1 Ducat - Wilhelm of Rosenberg

Wilhelm von Rosenberg was the last male of his line and one of the wealthiest magnates in Bohemia, controlling vast silver-mining revenues from his estates in southern Bohemia. His right to strike gold ducats was a privilege granted by Habsburg imperial authority, and he exercised it assertively — these issues functioned as much as declarations of dynastic standing as they did as circulating currency. Wilhelm died in 1592 without an heir, and the Rosenberg dominion was absorbed by Rudolf II, making the entire coinage series terminally finite by biology rather than policy.