Henry Percy, 3rd Baron Percy of Alnwick, was the eldest son of Henry de Percy, 2nd Baron Percy (1301–1352), and his wife, Idoine de Clifford, daughter of Robert de Clifford, 1st Baron de Clifford.
- Occupation
- aristocrat
- Position held
- High Sheriff of Northumberland
- Born
- 1321
- Died
- May 18, 1368