If Vladimir's marriage is treated as morganatic, then he was succeeded by Princess Vera Konstantinovna (1906–2001) in 1992 and by Princess Catherine Ivanovna (1915-2007) in 2001. Catherine died in 2007, which, in this scenario, would leave the head of the house position vacant. | If Vladimir's marriage is treated as morganatic, then he was succeeded by Princess Vera Konstantinovna (1906–2001) in 1992 and by Princess Catherine Ivanovna (1915-2007) in 2001. Catherine died in 2007, which, in this scenario, would leave the head of the house position vacant. |