'Gráinne' (pronounced ) is the daughter of
Cormac mac Airt in the
Fenian Cycle of
Irish mythology. She is one of the central figures in the tale ''
The Pursuit of Diarmuid and Gráinne'', which tells of her betrothal to
Fionn mac Cumhaill, leader of the
Fianna, and her subsequent elopement with Fionn's warrior
Diarmuid Ua Duibhne.
According to ''The Pursuit of Diarmuid and Gráinne'', Gráinne was promised in marriage to Fionn, but repulsed by his age, she forms a relationship with Diarmuid at their betrothal party. At first he refuses out of loyalty to Fionn, but she places a ''
geas'' upon him to run away with her. Their long flight from Fionn is aided by Diarmuid's foster-father
Aengus Óg. Eventually, Fionn pardons Diarmuid after Aengus intercedes on their behalf; the pair settle in
Kerry and produce five children. Years later Diarmuid is wounded by a boar while hunting with Fionn, who stalls in healing him until it is too later; texts vary on Gráinne's subsequent actions. In some versions she mourns her husband until she dies herself, while in others she swears her sons to avenge their father's death on Fionn. In still others she forgives Fionn, or even marries him.
The story of Gráinne and Diarmuid is one of a number of instances in Irish mythology of a love triangle between a young man, a young girl and an aging suitor, the other most famous instance being between
Naoise,
Deirdre and
Conchobar mac Nessa in the
Ulster Cycle. The same theme also shows up in other cultures, notably in the
Arthurian legend, itself of Celtic origin. ''The Pursuit of Diarmuid and Gráinne'' shares a number of similarities with the story of
Tristan and Iseult, and to a certain extent the love affair of
Lancelot and
Guinevere.
The
LÉ ''Gráinne'' (CM10), a ship in the
Irish Naval Service (now decommissioned), was named after Gráinne.
References
★ MacKillop, James (1998). ''Dictionary of Celtic Mythology''. Oxford. ISBN 0-19-860967-1.