Title: Aonghus mac Somhairle
Content:  Aonghus mac Somhairle (died 1210) was a leading member of Clann Somhairle. He was a son of Somhairle mac Giolla Brighde, King of the Isles and Ragnhildr Óláfsdóttir. Other sons of Somhairle and Ragnhildr include Dubhghall, Raghnall, and possibly Amhlaoíbh. Aonghus' father was the common ancestor of Clann Somhairle. The succession of this kindred upon Somhairle's death is uncertain. The Clann Somhairle imperium appears to have spanned from Glenelg in the north, to the Mull of Kintyre in the south. It is possible that Aonghus came to rule in the north, with Dubhghall centred in Lorne, and Raghnall in Kintyre and the southern islands. Although one mediaeval chronicle appears to 
Title: Aonghus mac Somhairle
Content:   Aonghus was a son of Somhairle mac Giolla Brighde, King of the Isles, the common ancestor of Clann Somhairle. Aonghus' mother was Ragnhildr, daughter of Óláfr Guðrøðarson, King of the Isles. According to the thirteenth- to fourteenth-century Chronicle of Mann, Somhairle and Ragnhildr had several sons: Dubhghall, Raghnall, Aonghus, and Amhlaoíbh. Aonghus appears to have been a younger brother of Raghnall. The Clann Somhairle claim to the kingship of the Isles seems to have stemmed from its descent from Ragnhildr, a granddaughter of the common ancestor of the Crovan dynasty. In the mid twelfth century, Somhairle confronted Ragnhildr's brother, Guðrøðr Óláfsson, King of the Isles, and wrested the kingship 
Title: Aonghus mac Somhairle
Content:  the chronicle account of 1210 appear to reveal that the Clann Somhairle kin-strife was the cause of increasing instability in the Isles. These two sources could well refer to connected events. For instance, they may be evidence that Raghnall's sons were attempting to extend their authority over the island, and it is possible that it was Ruaidhrí and Domhnall who overcame and slew Aonghus and his sons on Skye. This last stand on Skye could indicate that Aonghus had succeeded Raghnall as the representative of Clann Somhairle, and that Raghnall's sons responded by eliminating their uncle and his line. If so, it is possible that 
Title: Aonghus mac Somhairle
Content:  Clann Somhairle territories.  Although there is no direct evidence that Somhairle's imperium fragmented upon his death, there is reason to suspect that it was indeed divided between his sons. Whilst the division of territories amongst later generations of Clann Somhairle can be readily discerned, such boundaries are unlikely to have existed during the chaotic twelfth century. It is possible that the territory of the first generation of Clann Somhairle stretched from Glenelg in the north, to the Mull of Kintyre in the south: with Aonghus ruling in the north, Dubhghall centred in Lorne (with possibly the bulk of the inheritance), and Raghnall in Kintyre and the southern islands.
Title: Aonghus Mór
Content:   The first certain record of Aonghus Mór in contemporary sources dates to February 1256, when the English Crown commanded that he, and other unnamed men from Scotland, were not to be received in Ireland. In the mid thirteenth century, leading members of Clann Somhairle were clearly involved in Irish affairs. In 1247, a certain Mac Somhairle was slain whilst resisting an English invasion of Tír Chonaill. Dubhghall raided western Ireland and slew the English Sheriff of Connacht in 1258. The year after that, a daughter of Dubhghall married Aodh na nGall Ó Conchobhair, with the latter receiving the bride's tocher of one hundred 
Title: Aonghus mac Somhairle
Content:  Firth of Clyde region, and was probably intended to dominate not only William's peripheral barons, but also independent rulers—such as those of Clann Somhairle and the Crovan dynasty—just beyond the borders of the Scottish realm. Alan's westward expansion appears to have suddenly ceased by about 1200, perhaps partly in consequence of royal anxiety concerning the alliance. In 1210, the chronicle reports that Aonghus, and his three sons, were slain in battle on Skye. The year before, the fifteenth- to sixteenth-century Annals of Ulster reports that the sons of Raghnall —apparently Ruaidhrí and Domhnall —defeated the men of Skye with great slaughter.  The annal-entry of 1209 
Title: Aonghus mac Somhairle
Content:  to patch up relations between Clann Somhairle and the Crovan dynasty. It is possible that Rǫgnvaldr's kingship was formally recognised by Ruaidhrí as the principal member of Clann Somhairle, and that Ruaidhrí thereby established himself as a leading magnate within a reunified Kingdom of the Isles. Such a development may have taken place at about the time of Aonghus' elimination. Ruaidhrí was the eponymous ancestor of Clann Ruaidhrí. Although it is possible that Ruaidhrí controlled the lands that made up Garmoran and various islands in the Hebrides, there is uncertainty as to how and when these territories entered into the possession of his family. Later leading members of Clann Ruaidhrí certainly possessed these lands, but evidence of custody before the mid thirteenth century is lacking. One possibility—amongst several—is that Ruaidhrí gained Garmoran in the aftermath of the annihilation of Aonghus' line.
Title: Aonghus mac Úmhór
Content:  Aengus mac Umor (modern spelling: Aonghus mac Úmhór) was a mythical Irish king. The Fir Bolg of Connacht were ruled by King Aonghus mac Úmhór. Dubhaltach Mac Fhirbhisigh states that Aonghus led his people, the Tuath mhac nUmhoir, to the coast of Galway Bay and the Aran Islands, after being driven out by warfare with "Clann Chuian and the kindred of the Gaoidhil (Gaels)". The fortress of Dún Aonghasa on Inishmore, which legend states he built, is still called after him. O'Rahilly places these events in the 2nd century BC. Aonghus's son, Conall Caol, settled with his people in what was then the kingdom of Aidhne.
Title: Aonghas (given name)
Content: Aonghas mac Somhairle, (fl. 13th century), Scottish nobleman, son of Somerled ; Aonghas MacNeacail, (born 1942), Scottish Gaelic writer ; Aonghas Mór, (fl. 13th century), Scottish nobleman, son of Domhnall mac Raghnaill ; Aonghas Óg of Islay, (fl. 14th century), Scottish nobleman, son of Aonghas Mór ; Aonghas Óg, (died 1490), Scottish nobleman, son of John of Islay, Earl of Ross 
Title: Aonghus Mór
Content:  Aonghus Mór was a son of Domhnall mac Raghnaill, eponym of Clann Domhnaill. As such, Aonghus Mór can be regarded as the first Mac Domhnaill. Clann Domhnaill was the junior-most of three main branches of Clann Somhairle. The other two branches were Clann Dubhghaill and Clann Ruaidhrí, respectively descended from (Domhnall's uncle) Dubhghall mac Somhairle and (Domhnall's elder brother) Ruaidhrí mac Raghnaill. According to oral tradition dating to the eighteenth century, Aonghus Mór was fostered by the eponymous ancestor of Clann Duibhshíthe. The date of Domhnall's death and Aonghus Mór's succession is unknown, although the latter was certainly representing the family 

Question: Who is the father of Aonghus mac Somhairle?
Answer: Somerled.
Somhairlidh.