Knobelsdorff, Georg Wenceslaus von (1699-1753). Medium: oil on panel. Date: 18th Century. Kronprinz Friedrich II (1712-86); prince-elector of the Holy Roman Empire as Frederick IV of Brandenburg; King of Prussia (1740-86) from the Hohenzollern dynasty; nicknamed Friedrich der Grosse and 'der alte Fritz; Frederick the Great and 'old Fritz; Provenance: Schloss Sanssouci, Potsdam, Brandenburg, Germany. Photographic rights held by The Bridgeman Art Library.