Question: When was Beatrice, Countess Of Alburquerque's father born?
Sentence (from "Beltrán Alfonso Osorio, 18th duke of Alburquerque"): Beltrán Alfonso Osorio y Díez de Rivera, 18th Duke of Alburquerque( 15 December 1918 – 8 February 1994), was a Grandee of Spain and an amateur jockey.
Relevant evidence: No