The History of the Order of the Garter states “Great regard was manifested by the Duke of York on that ocassion, for the services of his followers… names of the other persons proposed are of interest, because they shew who were deemed the most eminent among the Yorkist party, and consequently to whom King Edward the Fourth was mainly indebted for the Throne.” Those nominiated included “Sir Richard Neville “the Kingmaker”, William Lord Bonville, Sir Thomas Kyriell, Sir John Wenlock, the Earl of Oxford, Lord Grey of Ruthyn, Lord Stourton, Lord Fitzwarine, Lord Hungerford, Lord Grey of Richmond, Lord Montagu, and Sir Gaillard Duras, Sir John and Sir Thomas Neville, sons of the Earl of Salisbury, Sir Thomas Haryngton, Sir William Uvedale, and Sir John Shotesbroke.”

I suspect William died in the War of the Roses, likely at Towton, but have no evidence other than he was not his father’s heir. So this William was obviously a person of substance of which little is known.