Gormflaith ingen Flann Sinna

Gormflaith ingen Flann Sinna (c. 870–948) was an Irish Queen of Tara,

Gormflaith was the daughter of Flann Sinna, High King of Ireland from 879 to 916. Her mother was Gormlaith ingen Flann mac Conaing of Brega. Her known siblings were:

Gormflaith was notable for been the successive queen consort of Munster, Leinster and Tara.

Gormflaith was married first to King Cormac mac Cuilennáin of Munster, who had taken vows of celibacy as a bishop. The marriage was not said to be cosumated. MacShamhran (p. 203) writes "Difficulties relating to this marriage leave it probable that it is a fiction – created when memory of Gormlaith became assimilated to the "sovereignty goddess" who had three husbands."

Cormac was killed at the battle of Bealach Mugna in 908 by an alliance of Flann Sinna of Tara and Cerball mac Muirecáin, King of Leinster. Flann afterwards married Gormflaith to Cerball, who is alleged (according to a text in the Book of Leinster) to have abused her so much that she was forced to return to her father at least once.

MacShamhran writes (p.203) "... the case for accepting as historical her marriage to Cerball is strengthened by a dindshenchas poem in the Book of Leinster, which also presents a different view of their relationship, implying that she was involved in intrigue on his behalf. She is blamed for the deaths of Cellach Carmain, who was an Ui Muirdaig dynast, and his wife Aillenn – apparently rivals of her husband. This circumstance, along with the fact that Cerball had the support of Flann Sinna at Belach Mugna, fits well with a Clan Cholmain-Ui Faelain alliance in the years prior to that battle."

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