William de Burgh
- Born: Abt 1178, Norfolk, England
- Marriage: Daughter of Donnell Mor O'Brien 160
- Died: 1205/06, Galway Castle, Connaught, Ireland about age 27 160
 Another name for William was Sir William Fitz Adelm Knight of Thistle, Lord of Connaught.
General Notes:
~Weis' Ancestral Roots of Certain American Colonists Who Came to America before 1700, 8th Edition, 177B:8, identifies him as Lord of Connaught and father of Richard, Lord of Connaught - his wife, "a daughter of Donnell O'Brien, K.T., being the mother. Weis cites Opren's History of the Normans in Ireland. Weis does not identify William's parents. 160
~The Norman People and their Existing Descendants , p. 58, William Fitz Adelm was the ancestor of the Burgh family. He was the Chief Governor of Ireland during the time of Henry II. 720
Information about this person:
• Web Reference: William FitzAdelm De Burgh from Library Ireland.
• Web Reference: William de Burgh from Wikipedia.
William married Daughter of Donnell Mor O'Brien, daughter of Domnall Mor Ua Briain and Urlachen mac Morough.160
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