Princess Nadejda Petrovna of Russia Princess of Russia (1898–1988) (1898–1988) Parents Grand Duke Peter Nikolaevich of Russia Princess Milica of Montenegro Children Kseniya Orlova Princess Irina Nikolaïevna Orlova Siblings Prince Roman Petrovich of Russia Princess Marina Petrovna of Russia Princess Sophia Petrovna of Russia Partners Nicholas W. Orloff
