Мария Павловна
Prince Vladimir had two elder half-siblings from his father's marriage to Alexandra Georgievna of Greece, "née" Princess Alexandra of Greece and Denmark: Grand Duchess Maria Pavlovna of Russia and Grand Duke Dmitri Pavlovich of Russia. He had two full sisters, both of whom eventually were styled as Her Serene Highness Princess Paley: Irina Pavlovna and Natalia Pavlovna. He also had three half-siblings from his mother's first marriage: Alexander Erikovich von Pistohlkors, Olga Erikovna von Pistohlkors, and Marianna Erikovna (or Marianne) von Pistohlkors.