When Princess Sophie of Anhalt-Zerbst arrived at the Russian court in 1744, one of the many daughters of minor German royal houses who came to St Petersburg in the hope of an advantageous marriage, she was just 15 and ‘as ugly as a scarecrow’ after a severe illness. Her future husband, the heir to the throne, Grand Duke Peter, was a bizarre character whose main interests were his toy soldiers and ‘romping’ with his valets.