Muiredach mac Ainbcellaig
Muiredach mac Ainbcellaig was king of the Cenél Loairn, and of Dál Riata (modern western Scotland), from about 733 until 736.
He was the son of Ainbcellach mac Ferchair.
His coming to power is reported in 733, and is not obviously associated with the death of Eochaid mac Echdach, king of Dál Riata, in the Irish annals.
It is not certain who preceded Muiredach as king of the Cenél Loairn, but it may have been his cousin Dúngal mac Selbaig.
Muiredach is one of the kings named in the 11th century praise poem "Duan Albanach".
It is likely that his reign ended as a result of his defeat at the hands of the Picts of Fortriu, led by Talorgan mac Fergusa, brother of Óengus, at "Cnoc Cairpri in Calathros at Etarlinde".
The battle is recorded by the Annals of Ulster, but Muiredach's death is not.
The independent existence of the kingdom of the Cenél Loairn, and that of Dál Riata, probably ended in 736, after which time it formed part of the kingdom of the Picts, ruled by Óengus mac Fergusa.
The next king of Dál Riata reported by the Irish annals is Áed Find, of the Cenél nGabráin, named in 768.
Some Scottish sources, including the Chronicle of Melrose, have Muiredach's son Eógan as his successor.
An entry in the Annals of the Four Masters under the year 771
(corresponding with about 776 AD, but perhaps as late as 778 AD since the death of Áed Find appears in the same year) reports Muiredach's death.
Cellach mac Brain
Cellach mac Brain( died 834) was a King of Leinster of the Uí Muiredaig sept of the Uí Dúnlainge branch of the Laigin.
This sept had their royal seat at Maistiu( Mullaghmast) in South Kildare.
He was the son of Bran Ardchenn mac Muiredaig( died 795), a previous king and brother of Muiredach mac Brain( died 818).
He ruled from 829 to 834.
Cellach's brother Muiredach ruled as co-king with Muiredach mac Ruadrach( died 829) of the Uí Fáeláin sept from 808 to 818.
In 814 Muiredach and Cellach won a victory over the Uí Cheinnselaig of south Leinster.
Upon the death of Muiredach, the other Muiredach mac Ruadrach became sole ruler until 829 at which time Cellach became king.
In August, 833 Cellach attacked the community of Kildare killing many.
Common hostility to Kildare may show that Cellach was in sympathy with Feidlimid mac Cremthanin( died 847) of Munster for political or religious reasons.
In 831 the men of Laigin had joined Feidlimid in a campaign that plundered Brega.
That same year the high king Conchobar mac Donnchada( died 833) of Clann Cholmáin plundered the Liffey in retaliation.
His son Lorcán mac Cellaig( fl. 848) was also king of Leinster.
The later kings of the Uí Muiredaig descended from his brother Muiredach.
Muiredach mac Brain (died 818)
Muiredach mac Brain( died 818) was a King of Leinster of the Uí Muiredaig sept of the Uí Dúnlainge branch of the Laigin.
This sept had their royal seat at Maistiu( Mullaghmast) in South Kildare.
He was the son of Bran Ardchenn mac Muiredaig( died 795), a previous king.
He ruled from 805 to 806 and again from 808 to 818.
Though not listed in the king list in the" Book of Leinster", he is mentioned in the Irish annals.
He is given the title" leth- ri"( one of two kings) at his death in 818(" Annals of Ulster") and ruled in conjunction with Muiredach mac Ruadrach( died 829) of the Uí Fáeláin sept.
In 795 his father, Bran, had been assassinated by his successor Fínsnechta Cethardec mac Cellaig( died 808) of the Uí Dúnchada sept as a direct challenge to the high- king.
In 805 Fínsnechta was deposed by the high king Áed Oirdnide( died 819) of the Cenél nEógain who installed Muiredach mac Brain and Muiredach mac Ruadrach as kings.
Finsnechta took refuge with Muirgius mac Tommaltaig( died 815), the King of Connacht who then aided him in recovering his throne in 806.
Upon the death of Finsnechta, Muiredach mac Brain and Muiredach mac Ruadrach were returned to rule.
In 814 a battle is recorded between the Uí Cheinnselaig of south Leinster and the sons of Bran.
The battle was won by the sons of Bran, probably Muiredach and his brother Cellach mac Brain( died 834).
Upon the death of Muiredach mac Brain, Muiredach mac Ruadrach became sole ruler.
Muiredach's sons, Tuathal mac Muiredaig( died 854) and Dúnlaing mac Muiredaig( died 869) were also kings of Leinster.
Another son Artúr mac Muiredaig( died 847) was king of western Liffey, Iarthair Liffey.
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Eógan mac Muiredaig
Eógan mac Muiredaig is named in some Scots sources as a king of Dál Riata, probably in the 730s.
Presumed to be the son of Muiredach mac Ainbcellaig, and thus a king of the Cenél Loairn, Eógan is not named in any surviving Irish annals, nor does he appear in the Duan Albanach, which passes from Muiredach to Áed Find.
The" Chronicle of the Kings of Dál Riata" names Eógan son of Muiredach as king after Muiredach, and the king- list in the Chronicle of Melrose includes him.
Later genealogies of the Mormaers of Moray trace their descent from the Cenél Loairn through one Ruadrí, a presumed brother of Eógan's father.
Eógan's reign falls in the period when Dál Riata was invaded and conquered by the Picts under Óengus mac Fergusa.
The name of his successor is unknown, and the next king to appear in the record is Áed Find of the Cenél n Gabráin, some three decades after Eógan's time.
Ainbcellach mac Ferchair
Ainbcellach mac Ferchair was king of the Cenél Loairn of Dál Riata, and perhaps of all Dál Riata, from 697 until 698, when he was deposed and exiled to Ireland.
He was a son of Ferchar Fota.
He is given the epithet the Good in the "Duan Albanach", a praise poem from the 11th century.
It is unclear how long he remained in exile.
There are reports of fighting in Dál Riata in the early 8th century which might be a conflict between Ainbcellach and his brother, Selbach mac Ferchair, or between the Cenél Loairn and the Cenél nGabráin for control of Dál Riata.
Ainbcellach had certainly returned by September 719, when he was killed fighting against Selbach in "Finnglen" (perhaps near Loch Fyne).
Ainbcellach's son Muiredach was later king of the Cenél Loairn.
The later Mormaers of Moray traced their descent to Ainbcellach and the Cenél Loairn through Ainbcellach's son Ruadrí.
Matudán mac Muiredaig
Matudán mac Muiredaig( died 857) was a Dál Fiatach king of Ulaid, which is now Ulster, Ireland.
He was the son of Muiredach mac Eochada( died 839), the previous king.
He ruled from 839-857.
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Question: Who is the paternal grandfather of Muiredach Mac Ainbcellaig?
Answer: Ferchar Fota