Derbforgaill ingen Taidhg

  Noted events in her life were:

• Web Reference: Charles Cawley's Medieval Lands, Derborgaill.
The Annals of Tigernach (Continuation) record that "Derborgaill daughter of Tadg, son of Gilla Pátraic, mother of Muirchertach Húa Bríáin king of Ireland…rested in Glendalough" in 1098[Annals of Tigernach II, Continuation, p. 323].

Derbforgaill married Toirdelbach Ua Briain, son of Domnall Ua Briain and Unknown. (Toirdelbach Ua Briain was born in 1008 in Munster, Ireland ¹⁰⁹⁹ and died on 14 Jul 1086 in Cenn Coradh, Munster, Ireland ⁷⁶⁴.)