Question: Who is the paternal grandmother of William Cavendish, 5Th Duke Of Devonshire?
Sentence (from "Blanche Cavendish, Countess of Burlington"): Blanche Cavendish, Countess of Burlington(" née" Howard; 11 January 1812 – 27 April 1840) was the wife of William Cavendish, 2nd Earl of Burlington, who would later become the 7th Duke of Devonshire.
Relevant evidence: No