Question: What is the date of death of Alexander Georgievich, 7Th Duke Of Leuchtenberg's father?
Sentence (from "Gregorio María de Silva y Mendoza, 9th Duke of the Infantado"): Gregorio de Silva y Mendoza( born 1649, Pastrana- d. 1693, Madrid) was a Spanish noble from the House of Mendoza.
Relevant evidence: No