Lionel of Antwerp, Duke of Clarence, (November 29, 1338 — October 7, 1368), born in Antwerp, was the third son of Edward III. When he was only a child he was married to Elizabeth de Burgh (d.1363), daughter of William de Burgh, 3rd Earl of Ulster (d.1332). The ceremony took place on August 15, 1342, at the Tower of London. He became properly married to her in 1352, when he was aged 14, and took over all her lands in Ireland. The famous English poet, Geoffrey Chaucer, was a page to Elizabeth.