question: What nationality is Murchad Mac Briain's father?
context: [["Domhnall mac Briain", ["Domhnall Mac Briain was the son of Brian Boru, the High king of Ireland and Eacraidh whose father was a R\u00ed of a tuath in Mide.", "He had two known siblings, one brother( Tadc) and a sister.", "The Annals of Inisfallen record that he raided Cen\u00e9l Conaill.", "Half of the army was led by Domhnall, while the other half by his half brother Murchad mac Briain.", "He died in 1012 due to natural causes.", "He had no children."]], ["Donnchad mac Briain", ["Donnchadh mac Briain( old spelling: Donnchad mac Briain)( died 1064), son of Brian B\u00f3ruma and Gormflaith ingen Murchada, was King of Munster."]], ["D\u00fanchad mac Murchada", ["D\u00fanchad mac Murchada( died 728) was a King of Leinster from the U\u00ed D\u00fanlainge branch of the Laigin.", "He was the son of Murchad mac Brain Mut( died 727), the previous king.", "He ruled from 727 to 728."]], ["Murchad mac Brian \u00d3 Flaithbheartaigh", ["Murchad mac Brian \u00d3 Flaithbheartaigh, Taoiseach of Iar Connacht and Chief of the Name, died 1419."]], ["Tadc mac Briain", ["Tadc mac Briain( died 1023) was the son of Brian Boru and Echrad, daughter of Carlus mac Ailella of U\u00ed \u00c1eda Odba.", "Tadc had one son, Toirdelbach Ua Briain( Turlough O' Brien), with his wife M\u00f3r, daughter of Gilla Brigte Ua Ma\u00edl Muaid of Cen\u00e9l Fiachach.", "After Brian Boru's death at the battle of Clontarf in 1014, Tadc was a serious contender to the kingship of Munster, rivalling his half brother Donnchad mac Briain.", "Tadc was assassinated at the instigation of Donnchad in 1023."]], ["Ali Rahuma", ["Ali Khalifa Rahuma( born May 16, 1982) is a Libyan football midfielder who's nationality is Libyan.", "He currently plays for Al- Ittihad, and is a member of the Libya national football team."]], ["Toirdelbach mac Murchada meic Briain", ["Toirdelbach mac Murchada meic Briain( c. 999 \u2013 23 April 1014) was the grandson of Brian Boru and one of the leaders of the D\u00e1l gCais army at the Battle of Clontarf.", "Toirdelbach was the son of Murchad mac Briain, the putative heir of Brian."]], ["Brian Boru", ["Brian Boru (modern ;", "c. 94123 April 1014), was an Irish king who ended the domination of the High Kingship of Ireland by the U\u00ed N\u00e9ill.", "Bestowed the title of \"Imperator Scottorum\" or \"Emperor of the Gaels\" (commonly translated as \"Emperor of the Irish\"), he built on the achievements of his father, Cenn\u00e9tig mac Lorcain, and especially his elder brother, Mathgamain, Brian first made himself King of Munster, then subjugated Leinster, eventually becoming High King of Ireland.", "He was the founder of the O'Brien dynasty, and is widely regarded as one of the most successful and unifying monarchs in medieval Ireland.", "With a population of under 500,000 people, Ireland had over 150 kings, with greater or lesser domains.", "The U\u00ed N\u00e9ill king M\u00e1el Sechnaill mac Domnaill, abandoned by his northern kinsmen of the Cen\u00e9l nE\u00f3gain and Cen\u00e9l Conaill, acknowledged Brian as High King at Athlone in 1002.", "In the decade that followed, Brian campaigned against the northern U\u00ed N\u00e9ill, who refused to accept his claims, against Leinster, where resistance was frequent, and against the Norse-Gaelic Kingdom of Dublin.", "Brian's hard-won authority was seriously challenged in 1013 when his ally M\u00e1el Sechnaill was attacked by the Cen\u00e9l nE\u00f3gain king Flaithbertach Ua N\u00e9ill, with the Ulstermen as his allies.", "This was followed by further attacks on M\u00e1el Sechnaill by the Dubliners under their king Sihtric Silkbeard and the Leinstermen led by M\u00e1el M\u00f3rda mac Murchada.", "Brian campaigned against these enemies in 1013.", "In 1014, Brian's armies confronted the armies of Leinster and Dublin.", "The resulting Battle of Clontarf saw Brian killed, his army nonetheless victorious against the Leinstermen and Norsemen.", "The battle is widely lauded as an instrumental moment in Irish history, and is well known in popular memory.", "Brian was well regarded by contemporary chroniclers.", "The Norse-Gaels and Scandinavians also produced works mentioning Brian, including \"Njal's Saga\", the \"Orkneyinga Saga\", and the now-lost \"Brian's Saga\".", "Brian's war against M\u00e1el M\u00f3rda and Sihtric was to be inextricably connected with his complicated marital relations, in particular his marriage to Gormlaith, M\u00e1el M\u00f3rda's sister and Sihtric's mother, who had been in turn the wife of Amla\u00edb Cuar\u00e1n, king of Dublin and York, then of M\u00e1el Sechnaill, and finally of Brian."]], ["Murchad mac Flann mac Glethneachan", ["Murchad mac Flann mac Glethneachan, King of Maigh Se\u00f3la, fl. 973."]], ["Murchad mac Briain", ["Murchad mac Briain was the son and heir of Brian Boru, a High King of Ireland who was killed on 23 April 1014 at the Battle of Clontarf.", "He was the de facto leader of his father's army."]]]
supporting_facts: [["Murchad mac Briain", 0], ["Brian Boru", 2]]
evidences: [["Murchad mac Briain", "father", "Brian Boru"], ["Brian Boru", "country of citizenship", "Munster"]]
answer: Munster