Ποιος παντρεύτηκε το Alexander Polovtsov;

Alexander Alexandrovich Polovtsov, Sr. (Russian: Александр Александрович Половцов; 12 June [O.S. 31 May] 1832 – 7 October [O.S. 24 September] 1909) was a Russian statesman, historian and patron; he was also known as the founder of the Imperial Russian Historical Society, which was founded in 1866 and dissolved in 1917.