Princess Catherine Dolgorukova was a Russian aristocrat and the daughter of Prince Michael Dolgorukov and Vera Vishnevskaya.
Catherine was a long-time mistress of Tsar Alexander II and later, as his morganatic wife, was given the title of Princess... Wikipedia
Born: November 14, 1847, Volhynia Governorate
Died: February 15, 1922 (age 74 years), Nice, France
Spouse: Alexander II of Russia (m. 1880–1881)
Grandchildren: Olga Gräfin von Merenberg, Aleksandr Yuryevsky, Aleksandr Baryatinsky, and more
Place of burial: Russian Orthodox cemetery Caucade, Nice, France
Parents: Mikhail Dolgorukov and Vera Vishnevskaya