Countess Alexandra Constantinovna von Zarnekau (Russian: графиня Александра Константиновна Зарнекау, 10 May [O.S.
At age 16, on 16 February 1900, Countess Alexandra married Prince George Alexandrovich Yuryevsky, the son of Tsar Alexander II by his mistress (and later wife), Ekaterina Mikhailovna Dolgorukova, the Princess Yourievskya.
They were married at Nice, France,[1][2] and had one child, Prince Alexander Georgievich Yourievsky, who was born 21 December 1900.
[3] Countess Alexandra married secondly to Lev Vassilievich Naryshkin on 17 October 1908 at Paris, France.
During World War I, Countess Alexandra worked as an administrator of the Russian hospital at Saloniki.