Question: Who is the paternal grandfather of William Fitzroy, 6Th Duke Of Grafton?
Sentence (from "Henry FitzRoy, 5th Duke of Grafton"): Grafton was the son of George FitzRoy, 4th Duke of Grafton and Lady Charlotte Maria Waldegrave, daughter of James Waldegrave, 2nd Earl Waldegrave.
Relevant evidence: Yes