Question: What is the date of birth of George Fitzroy, 1St Duke Of Northumberland's father?
Sentence (from "Hugh Percy, 10th Duke of Northumberland"): Hugh Algernon Percy, 10th Duke of Northumberland( 6 April 1914 – 11 October 1988), was the son of Alan Percy, 8th Duke of Northumberland, and Lady Helen Gordon- Lennox.
Relevant evidence: No