Diarmait Mac Murchadha | |
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The King of Leinster | |
Diarmuid Mac Murchadha
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King of Leinster in Ireland | |
Reign | 1126–1171 |
Predecessor | Enna mac Donnchada Mac Murchada |
Successor | Domhnall Caomhánach mac Murchada |
Born | c. 1110 Leinster, Ireland |
Died | c. 1 May 1171 |
Burial | Ferns, County Wexford |
Spouse |
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Issue | |
Father | Donnchad mac Murchada |
Mother | Orlaith ingen O'Braenain |
Diarmait Mac Murchada (Modern Irish: Diarmaid Mac Murchadha), anglicised as Dermot MacMurrough, Dermod MacMurrough, Dermot MacMorrogh or Dermot MacMorrow (c. 1110 – c. 1 May 1171), was a King of Leinster in Ireland. In 1167, he was deprived of his kingdom by the High King of Ireland – Ruaidri Ua Conchobair (Rory O'Connor). The grounds for the dispossession were that Mac Murchada had, in 1152, abducted Derbforgaill, the wife of the King of Breifne, Tiernan O'Rourke (Irish: Tighearnán Ua Ruairc). To recover his kingdom, Mac Murchada solicited help from the King of England Henry II of England. His issue unresolved, he gained the military support of the Earl Richard de Clare, the 2nd Earl of Pembroke (nicknamed "Strongbow"), who was in opposition to Henry II due to his support for Stephen, King of England against Henry's mother in The Anarchy. In exchange for his aid, Strongbow was married to Mac Murchada's daughter Aoife and promised succession to the Kingship of Leinster. Henry II then mounted a larger second invasion in 1171 to ensure his control over Strongbow, resulting in the Norman Lordship of Ireland. Mac Murchada was later known as Diarmait na nGall (Irish for "Diarmait of the Foreigners").