½ Thaler - Henry Wenceslaus and Charles Frederick I

1620 places this coin directly in the opening year of the Thirty Years' War, with Bohemian Protestant forces defeated at the Battle of White Mountain in November of that year — a catastrophe that would reshape dynastic control across Silesia within a generation. Münsterberg-Oels, a minor Piast duchy, continued issuing coinage under its joint rulers even as Habsburg consolidation began dismantling the autonomy of exactly these kinds of small Silesian lordships.

Henry Wenceslaus died in 1639 without male heirs, extinguishing his line and accelerating the duchy's absorption.