Lionel of Antwerp, Duke of Clarence was an English prince, Earl of Ulster jure uxoris from 1347, Duke of Clarence from 1362, Guardian of England in 1345–46, Lord Lieutenant of Ireland in 1361–66, Knig
Lionel, Duke of Clarence. 19th-century drawing of bronze statuette on south side of tomb of his father King Edward III in Westminster Abbey