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John de Burgh (; ; 1286 – 18 June 1313) was an Irish noble who was the son of 
Heir apparent to the Earldom of Ulster, he married (as her first husband) in Waltham Abbey, Essex, on 30 September 1308, Elizabeth de Clare, sister of Gilbert de Clare, 7th Earl of Hertford and 8th Earl of Gloucester. She was the founder of Clare College, Cambridge, and a granddaughter of King Edward I of England. Gloucester in turn married John's sister Maud.
John and Elizabeth had one son:
* William Donn de Burgh, 3rd Earl of Ulster (1312–1333)
However, John died in Galway the next year, leaving his infant son William heir to the Earldom.
Richard Óg de Burgh, 2nd Earl of Ulster
Richard Óg de Burgh, 2nd Earl of Ulster and 3rd Baron of Connaught (; ; 1259 – 29 July 1326), called The Red Earl ( Latinized to de Burgo), was one of the most powerful Irish nobles of the late 13th and early 14th centuries and father of ...
, and Margaret de Burgh.
Heir apparent to the Earldom of Ulster, he married (as her first husband) in Waltham Abbey, Essex, on 30 September 1308, Elizabeth de Clare, sister of Gilbert de Clare, 7th Earl of Hertford and 8th Earl of Gloucester. She was the founder of Clare College, Cambridge, and a granddaughter of King Edward I of England. Gloucester in turn married John's sister Maud.
John and Elizabeth had one son:
* William Donn de Burgh, 3rd Earl of Ulster (1312–1333)
However, John died in Galway the next year, leaving his infant son William heir to the Earldom.
Ancestry
References
{{DEFAULTSORT:Burgh, John de 1286 births 1313 deaths 13th-century Irish people 14th-century Irish people People from County Galway John de Normans in Ireland Younger sons of earls