Question: Who is the paternal grandmother of William Cavendish, 5Th Duke Of Devonshire?
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