Joan de Burgh
Joan de Burgh (c. 1300–1359), daughter of the 2nd Earl of Ulster, married Thomas FitzJohn, 2nd Earl of Kildare, and after his death in 1328 John Darcy, 1st Baron Darcy de Knayth. She mothered Maurice, 4th Earl of Kildare, and Elizabeth, Countess of Ormond.