Friedrich Wilhelm IV. Hohenzollern von Preußen, King of Prussia, was born 15 October 1795 in Kronprinzenpalais, Berlin, Germany to Friedrich Wilhelm III. von Preußen (1770-1840) and Luise von Mecklenburg-Strelitz (1776-1810) and died 2 January 1861 Potsdam, Brandenburg, Germany of unspecified causes. He married Elisabeth Ludovika von Bayern (1801-1873) 29 November 1823 . Charlemagne (747-814)/s, Henry II of England (1133-1189)/s, Willem van Oranje (1533-1584)/s.