1/2 Ducat - John George

John George of Hohenzollern governed Jägerndorf — a Silesian duchy held by the Brandenburg-Ansbach branch of the Hohenzollerns — until the catastrophe of the Thirty Years' War ended his rule entirely. He backed Frederick V of the Palatinate as King of Bohemia, a catastrophically poor wager. After the Battle of White Mountain in 1620, Ferdinand II placed John George under imperial ban, confiscating the duchy outright. He died in exile in 1624, never recovering his territory. The Hohenzollerns were not compensated for Jägerndorf's loss until the Silesian Wars of the 1740s, when Frederick the Great seized the region by force and reopened the dynastic grievance after more than a century.