Old Town Square execution was the execution of 27 Bohemian leaders of the Bohemian Revolt by the Austrian House of Habsburg that took place on 21 June 1621 at the Old Town Square in Prague.

The Defenestrations of Prague were three incidents in the history of Bohemia in which people were defenestrated. Though already existing in Middle French, the word defenestrate is believed to have first been used in English in reference to the episodes in Prague in 1618 when the disgruntled Protestant estates threw two royal governors and their secretary out of a window of the Hradčany Castle and wrote an extensive apologia explaining their action. In the Middle Ages and early modern times, defenestration was not uncommon—the act carried elements of lynching and mob violence in the form of murder committed together.