Editors. "'Defenestration of Prague' starts the Thirty Years War". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15805, accessed 16 April 2014.]
Protestant Bohemian rebels enact what is known as 'the Defenestration of Prague' when they break into the Regents' castle in Prague and throw Martinitz and Slawata out of the third-floor window. This act is one of the triggers of the Thirty Years War, which is to last until 1648.