 After the Revolution, both Kschessinska and Grand Duke Andrei maintained that Andrei was the father, but it was Grand Duke Sergei who looked after Mathilde and her son while he was alive.The child, who became known within the family by his nickname Vova, received the name and patronymic of Vladimir Sergeivich, although no surname was made public until 1911.The birth certificate showed Sergei as the father, and he was devoted to the child.