They had a daughter named Elizabeth age 689.
William Donn de Burgh, 3rd Earl of Ulster and Maud of Lancaster, Countess of Ulster - Dating, Gossip, News, Photos list. Help us build our profile of William Donn de Burgh, 3rd Earl of Ulster and Maud of Lancaster, Countess of Ulster!
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The 3rd Earl of Ulster married, before 16 November 1327 (by a Papal Dispensation dated 1 May 1327), Maud of Lancaster, daughter of Henry, 3rd Earl of Lancaster and Maud Chaworth. They had only one surviving child, Elizabeth, Countess of Ulster, who was 13 months old when he was murdered. She married Lionel of Antwerp, third son of Edward III of England.