Question: Who is the maternal grandfather of Robert Bertie, 4Th Duke Of Ancaster And Kesteven?
Sentence (from "Robert Bertie, 4th Duke of Ancaster and Kesteven"): On his death, the Hereditary Lord Great Chamberlainship and the Barony Willoughby de Eresby fell into abeyance between his two sisters, all other titles of his passed to his uncle.
Relevant evidence: No