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.
Citation:
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 25 May 2013.]