Percy, a noble English family of Norman origin, the founder of which accompanied the Conqueror, and was rewarded with grants of land for his services; a successor of whom in the female line, Henry, the father of the famous Hotspur, was created Duke of Northumberland in 1377.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Percival, James Gates * Percy, Thomas