Wilhelm (6 July 1785 âÂÂ2 July 1823 ) Due to mental illness, Wilhelm was duke in name only, with his cousin Peter, Prince-Bishop of Lübeck, acting as regent throughout his entire reign.
21 November â German poet Heinrich von Kleist shoots his terminally ill lover Henriette Vogel and then himself, on the shore of the Kleiner Wannsee near Potsdam.