Nadejda was engaged before the outbreak of
World War I to
Prince Oleg Constantinovich of Russia, who was killed in action. Oleg gave her an engagement ring and asked her to return it when he went off to fight, anticipating danger. After Oleg's death, she married Prince
Nicholas Vladimirovich Orlov (1891–1961) in the
Crimea in April 1917. They were among the Romanovs who escaped the
Russian Revolution in 1919 aboard the British ship . Their baby daughter Princess Irina Orlova, born in March 1918, was the youngest passenger aboard the ship. The Orlovs had two daughters: • Princess Irina Nikolaïevna Orlova (1 March 1918 – 16 September 1989); married 1st in
Rome 27 March 1940 (divorced 1946) Baron Hans von
Waldstätten (1918–1977); m. 2nd in
The Hague 8 January 1960 Anthony Adam Zylstra (1902–1982) She had two daughters from her first marriage. • Princess Xenia Nikolaievna Orlova (27 March 1921 – 17 August 1963); married 1st in
Avon 27 March 1940 (divorced 1950) Paul-Marcel de Montaignac de Pessotte-Bressolles (1909 –); m. 2nd in
Paris 14 March 1951 Chevalier Jean Albert d'Almont (1909–2003) Princess Nadejda divorced in 1940. She died in
Chantilly,
France in 1988. Her daughters left descendants. ==Honours==