Semyon Svyatopolk-Mirsky (1910-1989) (1910–1989) Parents Semyon Svyatopolk-Mirsky Children Princess Irina Yadwiga Teresa Semeonovna Sviatopolk-Mirska Prince Sebastion Semeonovitch Sviatopolk-Mirsky Princess Maria Semeonovna Sviatopolk-Mirsky Princess Anastasia Olga Mikhaila Zhana Semeonovna Sviatopolk-Mirska Siblings Nikolay Svyatopolk-Mirsky