Colla mac Fergusso (or Colla mac Forgusso, died 796) was a possible King of

Connacht Connacht ( ; ga, Connachta or ), is one of the provinces of Ireland, in the west of Ireland. Until the ninth century it consisted of several independent major Gaelic kingdoms (Uí Fiachrach, Uí Briúin, Uí Maine, Conmhaícne, and Delbhn ...

from the

Uí Briúin The Uí Briúin were a royal dynasty of Connacht. Their eponymous apical ancestor was Brión, son of Eochaid Mugmedon and Mongfind, and an elder half brother of Niall of the Nine Hostages. They formed part of the Connachta, along with the U ...

branch of the

Connachta The Connachta are a group of medieval Irish dynasties who claimed descent from the legendary High King Conn Cétchathach (Conn of the Hundred Battles). The modern western province of Connacht (Irish ''Cúige Chonnacht'', province, literally "f ...

. He was the son of

Forggus mac Cellaig Forggus mac Cellaig (or Fergus mac Cellaig) (died 756) was a King of Connacht from the Uí Briúin branch of the Connachta. He was the son of Cellach mac Rogallaig (died 705), a previous king and brother of Domnall mac Cellaig (died 728). The sep ...

(died 756), a previous king. The sept of Uí Briúin he belonged to was the Síl Cellaig of Loch Cime (Lough Hackett, near Headford in modern County Galway) named for his grandfather

Cellach mac Rogallaig Cellach mac Rogallaig (or Cellach Locha Cime) (died 705) was a King of Connacht from the Uí Briúin Sil Cellaig branch of the Connachta. He was the son of Rogallach mac Uatach (died 649), a previous king. He succeeded his nephew Muiredach Muil ...

(died 705). Though omitted from king lists such as the ''Book of Leinster'', he is called king at his death obit in the ''Annals of Innisfallen''. However, the ''Annals of Ulster'' say that

Muirgius mac Tommaltaig Muirgius mac Tommaltaig (died 815) was a King of Connacht from the Uí Briúin branch of the Connachta. He was the great-grandson of Indrechtach mac Muiredaig Muillethan (died 723), a previous king. The death of his father Tommaltach mac Murgail ( ...

(died 815) became king after defeating Cináed mac Artgail (died 792) at the Battle of Sruth Cluana Argai (Cloonargid, Roscommon, Co.) in 792. His death is recorded in this annal as King of Uí Briúin. Colla was the last king from the Síl Cellaig sept. This sept was later displaced from this area by the Uí Briúin Seóla.Byrne, p. 348.

Notes

References

* ''Annals of Ulster'' a

a
University College Cork
* ''Annals of Innisfallen'' a

a
University College Cork
* Byrne, Francis John (2001), ''Irish Kings and High-Kings'', Dublin: Four Courts Press,

External links

a
University College Cork
796 deaths Kings of Connacht Nobility from County Galway Nobility from County Roscommon 8th-century Irish monarchs Year of birth unknown {{Ireland-royal-stub