Catherine the Great's seizure of power remains one of the most dramatic and ironic episodes in Russian history. The little-known and rarely visited complex of Oranienbaum, a closed area until recently, was the setting for her coup d'etat as well as where she commissioned her first palace as tsarina. Here, she would relax in private with her accomplice and lover Grigory Orlov, with whom she had a secret child. Her creation, the rococo Chinese Palace,...