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Domnall mac Murchada (died 1075), also known as Domnall mac Murchada meic Diarmata,〔Moody; Martin; Byrne (2005) p. 209.〕 was a leading late eleventh-century claimant to the Kingdom of Leinster, and a King of Dublin. As a son of Murchad mac Diarmata, King of Dublin and the Isles, Domnall was a grandson of Diarmait mac Máel na mBó, King of Leinster, and thus a member of the Uí Chennselaig. Domnall was also the first of the Meic Murchada, a branch of the Uí Chennselaig named after his father. In 1071, the year before his grandfather's death, Domnall and an Uí Chennselaig kinsman, Donnchad mac Domnaill Remair, battled for control of Leinster. Although Domnall is accorded the title King of Leinster in one mediaeval king-list, Donnchad was evidently a more powerful claimant, and Domnall appears to have held the Leinster kingship in name only. Domnall's rise to power in the Kingdom of Dublin took place in 1075, after the expulsion of the reigning Gofraid mac Amlaíb meic Ragnaill, King of Dublin by the latter's overlord, Toirdelbach Ua Briain, King of Munster. The circumstances surrounding Domnall's accession are uncertain. He may have collaborated with Gofraid to wrench the kingdom from the grip of the Uí Briain, or he may have been installed in the kingship by Toirdelbach himself, and ruled under the latter's overlordship. Whatever the case, Domnall died within the year, and Toirdelbach placed his own son, Muirchertach, upon the throne. ==Background== Domnall was a son of Murchad mac Diarmata, King of Dublin and the Isles (died 1070),〔Hudson, B (2005a); Byrne (2001) p. 290 tab. 10; Duffy (1992) pp. 102–103; Ó Corráin (1971) pp. 20, 21.〕 who was himself a son of Diarmait mac Máel na mBó, King of Leinster (died 1072).〔Hudson, B (2005a); Hudson, BT (2004); Duffy (1992) pp. 102–103; Ó Corráin (1971) pp. 20, 21.〕 Domnall was, therefore, a member of the Uí Chennselaig;〔Ó Corráin (1971) p. 20.〕 as well as the first of the Meic Murchada, a branch of the Uí Chennselaig named after his father.〔Zumbuhl (2005); Duffy (1992) pp. 102–103.〕 Domnall had two brothers: Donnchad (died 1115), a later King of Leinster, and Énna.〔Byrne (2001) p. 290 tab. 10; Ó Corráin (1971) p. 20.〕 In 1052, Domnall's aforesaid grandfather conquered the Kingdom of Dublin from Echmarcach mac Ragnaill, King of Dublin and the Isles (died 1064/1065), and soon after appointed Murchad as King of Dublin. About a decade later, Murchad appears to have driven Echmarcach from Mann,〔Duffy (2006) p. 55; Hudson, B (2005a); Hudson, BT (2004); Duffy (2002) pp. 53–54; Duffy (1993) p. 14.〕 after which he gained the kingship of the Isles.〔Duffy (1993) p. 14.〕 Diarmait's deep-rooted authority in Norse-Gaelic Dublin lasted for two decades, and was a remarkable achievement that no other Irish king had ever accomplished.〔Duffy (1993) p. 14; Duffy (1992) pp. 100–101.〕 Unfortunately for the Uí Chennselaig, two of Diarmait's sons—Murchad and Glún Iairn—unexpectedly predeceased their father in 1070,〔Hudson, B (2005a); Hudson, B (2005b); Hudson, BT (2004); Duffy (2002) p. 54; Hudson, B (1994) p. 149; Duffy (1993) p. 14; Ó Corráin (1971) pp. 19, 20.〕 and Diarmait himself fell in battle two years later.〔Hudson, B (2005a); Hudson, B (2005b); Hudson, BT (2004); Duffy (2002) p. 54; Ó Corráin (1971) pp. 19, 20.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Domnall mac Murchada」の詳細全文を読む スポンサード リンク
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