By birth a member of the
house of Urusov, Sofya Alexandrovna was born in
Moscow, as the daughter of Ober-Hofmeister Prince Alexander Mikhailovich Urusov (1766–1853) and his wife, Ekaterina Petrovna Tatishcheva (1775–1855), who was the sister of diplomat
Dmitry Pavlovich Tatishchev. She served as maid of honour to the
empress between 1827 and 1833, and was the reputed lover of the emperor during that period. In 1833 she married prince Leon Hieronim
Radziwiłł. At one point she became an acquaintance of
Anne Lister. == References ==