Question: Who is the maternal grandfather of Dmitry Golitsyn?
Sentence (from "Dmitry Golitsyn"): He was born in the family of Knyaz Vladimir Borisovich Golitsyn (1731–1798) and his wife Natalie Chernyshova, nicknamed "La Princesse Moustache", or "the Queen of Spades", who was portrayed as a central character in Pushkin's story (and Tchaikovsky's opera) of the same name.
Relevant evidence: Yes