Óengus mac Mugróin (died 803) was a king of the Uí Failge, a Laigin people of
County Offaly
County Offaly (; ga, Contae Uíbh Fhailí) is a county in Ireland. It is part of the Eastern and Midland Region and the province of Leinster. It is named after the ancient Kingdom of Uí Failghe. It was formerly known as King's County, in hono ...
. He was the son of
Mugrón mac Flainn
Mugrón mac Flainn (died 8th century in Ireland, 782) was a king of the Uí Failge, a Laigin people of County Offaly. He was one of the many sons of Fland Dá Chongal, a previous king. He ruled from 770 to 782. He was the third of Fland's sons by ...
(died 782), a previous king. He ruled from 783 to 803.
A conflict within the Uí Failge led to a slaughter in 789 at Cluain Ferta Mongáin (Kilclonfert, County Offaly) by Óengus at which his cousin Áed mac Tomaltaig was slain (their fathers were brothers). In 803 he was treacherously killed by the followers of
Fínsnechta Cethardec
Finsnechta Cethardec mac Cellaig (died 808) was a King of Leinster of the Uí Dúnchada sept of the Uí Dúnlainge branch of the Laigin. He was the son of Cellach mac Dúnchada (died 776), a previous king. He ruled from 795 to 808. His byname Ceth ...
mac Cellaig (died 808), over king of Leinster.
[AU 803.6; Byrne, pg.160] Finsnechta was ensuring his control of the church of Kildare which led to conflict with the Uí Failge.
His grandson Máel Sinchill mac Mugróin (died 881) was a King of the Uí Failge.
Notes
See also
*
Kings of Ui Failghe
Kings or King's may refer to:
*Monarchs: The sovereign heads of states and/or nations, with the male being kings
*One of several works known as the "Book of Kings":
**The Books of Kings part of the Bible, divided into two parts
**The ''Shahnameh'' ...
References
* ''Annals of Ulster'' a
a
University College Cork* Byrne, Francis John (2001), ''Irish Kings and High-Kings'', Dublin: Four Courts Press,
* Mac Niocaill, Gearoid (1972), ''Ireland before the Vikings'', Dublin: Gill and Macmillan
* Ó Cróinín, Dáibhí (2005), ''A New History of Ireland'', Volume One, Oxford: Oxford University Press
* ''Book of Leinster'',''Rig hua Falge'' a
a
University College Cork
External links
a
University College Cork
803 deaths
8th-century Irish monarchs
9th-century Irish monarchs
Year of birth unknown
{{Ireland-bio-stub