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) [2]
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)[3]
Princess Nadezhda divorced in 1940. She died in Chantilly, France in 1988. Her daughters left descendants.[2]