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Fergus Dubdétach
Irish king · Ireland · On the map
Fergus Dubdétach ("black-tooth") was, according to medieval Irish legend and historical tradition, a king of the Ulaid who was briefly High King of Ireland.
Fergus Dubdétach is read about 3 times a day, in 7 languages.
A typical day, 30 days to 17 August 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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About this person
He took the High Kingship after his predecessor, Lugaid mac Con, was expelled from Tara by Cormac mac Airt and killed in Munster by Cormac's poet Ferches mac Commáin. Fergus and his two brothers, Fergus Caisfhiachlach ("rough-tooth") and Fergus Foltlebair ("long-hair"), then expelled Cormac to Connacht and Fergus took the throne. He ruled for a year, before he was defeated by Cormac, with the assistance of Tadg mac Céin and Lugaid Láma, in the Battle of Crinna.