Question: When was Lydia Lopokova's husband born?
Sentence (from "Lydia Lopokova"): Lydia Lopokova, Baroness Keynes (born Lidia Vasilyevna Lopukhova, ; 21 October 1892 – 8 June 1981) was a Russian ballerina famous during the early 20th century.
Relevant evidence: No