Cosgrach mac Flannbhrath

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Cosgrach mac Flannbhrath, King of Umaill, died 812.

Flathghal's relationship to the kings Dunghal mac Flaithniadh (died 776) and Aedhghal (died 779) is uncertain, as they does not seem to appear in the extant genealogies.

However, he was a son of King Flannabhra (died 773) and succeeded his brother, Flathghal mac Flannbhrath, in 782. He reigned for fully thirty years, and it is from him that all subsequent kings of Umaill appear to descend. However, the exact succession is unclear for many generations after Cosgrach's death.

His grandson, Maille mac Conall, would give his name to the Ó Máille clan.

See also[edit]

Preceded by
Flathghal mac Flannbhrath
King of Umaill
Succeeded by
Cairbre mac Cinaedh

External links[edit]


  • The History of Mayo, pp. 388–89, T.H. Knox, 1908.