(May 23, 1618) Incident of Bohemian resistance to Habsburg authority.
In 1617 Catholic officials in Bohemia closed Protestant chapels in violation of the religious-liberty guarantee of 1609. At an assembly called by the Protestants, the imperial regents were found guilty of violating the guarantee and were thrown from the windows of the council room of Prague Castle. Though the victims were not seriously hurt, the incident sparked the Bohemian revolt against Emperor Ferdinand II and led to the Thirty Years' War .