According to her father, Prince Felix Yusupov Feliksovitch, his daughter received a poor education causing an alteration in the character of the girl, who became capricious.

Princess Irina Felixovna Yusupova was raised by nannies and, whilst she adored her father, she was very distant with her mother.

[2] Princess Irina married on 19 June 1938 in Paris, France, Count Nikolai Dmitrievich Sheremetev (28 October 1904, Moscow, Russia – 5 February 1979, Paris, France), son of Count Dmitri Sergeievich Sheremetev and his wife Countess Irina Ilarionovna Vorontsova-Dashkova.

[1] Xenia Sheremeteva provided mitochondrial DNA (mDNA) in the 1990s in order to help identify bones recovered in Siberia in 1979 as the remains of Tsar Nicholas II of Russia, who was executed in 1918 along with his wife and children.

The test required a female line descendant, as mDNA is passed unchanged from mother to child, unless there is a mutation.