About Fáelán mac Colmáin
Fáelán mac Colmáin was a monarch.
Fáelán mac Colmáin (died 666) was a King of Leinster from the Uí Dúnlainge branch of the Laigin. He was the son of Colmán Már mac Coirpri, a previous king. Faelan was the founder of the true fortunes of the Ui Dunlainge dynasty.
Rise to the throne
Faelan is first mentioned in the annals when he defeated and slew Crundmáel Bolg Luatha of the Uí Cheinnselaig at the Battle of Duma Aichir in 628. The annals seem to give him the title of king of Leinster by anticipation. The Book of Leinster gives him a reign of 30 years and his death obit of 666 in the annals appears to be an interpolation based on the king lists. It is more probable that he died before 656 when Crundmáel Erbuilc mac Rónáin is called king of Leinster at his death obit. Faelans brother Áed Dub was abbot and bishop of Kildare and his nephew Óengus mac Áedo Find was also bishop of Kildare. The possession of Kildare by family members was important to his hold on power. One of his wives was Sárnat ingen Echach of the Fotharta Fea, a tribe with connections to Saint Brigid of Kildare.
Relations with the Uí Néill
The rise of the Ui Dunlainge to power appears to have been assisted by the Clann Cholmain who were looking to neutralize the border situation with the Ui Failgi so as to carry out their rivalry with the Síl nÁedo Sláine. One of his wives was Uasal ingen Suibni (died 643), sister of Conall mac Suibni who had assisted him at Ath Goan.
Family
His son by Sarnat was Conall mac Fáelán, who was father, by Conandil ingen Crundmáel of the Ui Dunlainge, of Bran Mut mac Conaill (died 693), a king of Leinster.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
Frequently asked questions
Who was Fáelán mac Colmáin?
King of Leinster
When did Fáelán mac Colmáin die?
Fáelán mac Colmáin died in 656.
What was Fáelán mac Colmáin's occupation?
Fáelán mac Colmáin was a monarch.
Sources & further reading
· Wikipedia: Fáelán mac Colmáin
Cite this page
APA: Biography.guide. (2026). Fáelán mac Colmáin. https://biography.guide/faelan-mac-colmain/
MLA: "Fáelán mac Colmáin." Biography.guide, https://biography.guide/faelan-mac-colmain/.
Chicago: "Fáelán mac Colmáin." Biography.guide. https://biography.guide/faelan-mac-colmain/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:30 UTC