486566 Portrait of Christian August, Prince of Anhalt-Zerbst, 1725 (oil on canvas) by Pesne, Antoine (1683-1747); State Hermitage Museum, St. Petersburg, Russia; (add.info.: Christian August, Prince of Anhalt-Zerbst (1690??747) was a German prince of the House of Ascania. He was a ruler of the Principality of Anhalt-Dornburg, then, from 1742, a ruler of the entire Principality of Anhalt-Zerbst. He was also a Prussian Generalfeldmarschall, but is best known for being the father of Catherine the Great of Russia.); French, out of copyright.