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 the death of his elder brother, Peregrine Thomas Bertie, Marquess of Lindsey, on 12 December 1758, he inherited the courtesy title of Marquess of Lindsey.
Relevant evidence: No