Question: When is Duchess Elsa Of Württemberg's father's birthday?
Sentence (from "Duchess Elsa of Württemberg"): Duchess Elsa of Württemberg (Elsa Mathilde Marie; 1 March 1876 – 27 May 1936) was a daughter of Duke Eugen of Württemberg and Grand Duchess Vera Constantinovna of Russia.
Relevant evidence: Yes