Henry George Alan Percy, 9th Duke of Northumberland was the son of Alan Percy, 8th Duke of Northumberland and Lady Helen Gordon-Lennox.
He served as Parliamentary Private Secretary to the Lord Privy Seal in 1935. During his lifetime, the 9th Duke... Wikipedia
Born: July 15, 1912
Died: May 21, 1940 (age 27 years), Pecq, Belgium
Great-grandparents: Algernon Percy, 6th Duke of Northumberland and Charles Gordon-Lennox, 6th Duke of Richmond
Cousins: Dorothy Anne Percy and Mary Edith Percy