Princess Nadejda Petrovna of Russia
|Princess Nadejda Petrovna|
Princess Nadejda in 1917.
|Spouse||Prince Nicholas Orlov|
|Issue||Princess Irina Orlova|
|House||House of Orlov
House of Holstein-Gottorp-Romanov
|Father||Grand Duke Peter Nikolaevich of Russia|
|Mother||Princess Milica of Montenegro|
|Born||3 March 1898|
|Died||21 April 1988
Nadejda was engaged before the outbreak of World War I to Prince Oleg Constantinovich of Russia, who was killed in action. 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 the HMS Marlborough. Their baby daughter Princess Irina Orlova, born in March 1918, was the youngest passenger aboard the ship.
The Orlovs had two daughters :
- Princess Irina Nikolaievna Orlova (27 March 1918 – 16 September 1989); married 1st Rome 27 March 1940 (divorced 1946) Baron Hans von Waldstatten (1918–1977); m. 2nd The Hague 8 January 1960 Anthony Adam Zylstra (1902–1982) 
- Princess Xenia Nikolaievna Orlova (27 March 1921 - 17 August 1963); married 1st Avon 27 March 1940 (divorced 1950) Paul-Marcel de Montaignac de Pessotte-Bressolles (1909 -); m. 2nd Paris 14 March 1951 Chevalier Jean Albert d'Almont (1909–2003)
- Zeepvat (2004), pp. 203, 212
- Willis, The Romanovs in the 21st Century, p. 165
- Willis, The Romanovs in the 21st Century, p. 166
- Willis, Daniel. The Romanovs in the 21st Century: a genealogical Biography. VDM, 2009. ISBN 978-3-639-17480-9.
- Zeepvat, Charlotte. The Camera and the Tsars. Sutton Publishing, 2004. ISBN 0-7509-3049-7