Child(ren):
The Vassiltchikov clan were originally descended from Vassili "Wassilichik" Yourievich, who was many generations removed from Gregory, who circa 1676 was the father of 3 sons. Alexis, the middle son was the grandfather of Hilarion (1776-1847), who was created the first Prince, and was the father of 6 sons.
Alexander V may have been a son of Victor (1820-78) or Vassili (1826-67), the 4th and 5th of these brothers. The eldest was Hilarion (1805-62), whose son Serge (born 1849) died in Versaillies in 1926. His son, another Hilarion (1886-1969) left Russia with his wife, nee Princess Lydia Leonidevna Wiazemsky (1886-1948), and their 4 small children (a fifth child George was born in Beaulieu-sur-Mer in Nov 1919).The maid of honour may be a daughter of Peter (1829-98) of one of the untitled branches.
http://forum.alexanderpalace.org/index.php?action=profile;u=3725;sa=showPosts;start=75
The data shown has no sources.