Battle of White Mountain #

November 1620, near Prague. Decisive Imperial victory in the Bohemian phase of the Thirty Years' War. ¹

Outcome #

"Defeated at the Battle of White Mountain in November 1620, the Bohemian army disintegrated, and Frederick fled the country." Frederick V, the Palatine Protestant who had accepted the Bohemian crown in 1619, lost his brief kingdom in one battle. ¹

Significance #

Crushed the Bohemian revolt that had begun the war. The shock enabled Imperial and Catholic League counter-reformation across Bohemia and the Palatinate, and set the stage for the Imperial ascendancy of 1621–1629.

Linked #

• Defenestration of Prague — proximate cause
• Thirty Years' War
• Holy Roman Empire

Sources #

¹ wikipedia-thirty-years-war-2026-06-14.md