Background
He was the son of Sir John de Sutton II, the first Lord of Dudley, and Isabella de Cherleton.
He was the son of Sir John de Sutton II, the first Lord of Dudley, and Isabella de Cherleton.
John III married twice, with the first on 25 December 1357 to Katherine de Stafford (1340/8 – December 1361), daughter of Ralph de Stafford, 1st Earl of Stafford and Margaret de Audley, 2nd Baroness Audley. By Katherine, Sir John de Sutton IV became successor.