Bláthnat

Bláthnat ("Little flower"), sometimes Bláthíne, is a character in early Irish literature, a king's daughter, wife of the warrior Cú Roí and the lover of his rival Cú Chulainn.

Love triangle

Her father is either Mend of Inis Fer Falga (identified as the Isle of Man), Iuchna,Conchobar mac Nessa, or Midir, the fairy king of Brí Léith (located in County Westmeath).

Her father's kingdom was invaded by warriors of the Red Branch of Ulster, led by Cú Roí and Cú Chulainn. The raid led to her capture, along with several cattle and a magic cauldron. Despite her being in love with Cú Chulainn, she was chosen by Cú Roí as his personal spoil and she therefore married him, leading to a dispute between the two warriors. This ended with Cú Chulainn being shaved and humiliated by Cú Roí.

Later, she betrayed her husband to his enemies, pouring milk into the River Finglas (Finnglas) as a signal that he was at home. Subsequent to this action, Cú Roí was slain by Cú Chulainn. In revenge, Cú Roí's poet Ferchertne, threw both himself and Blathnát from a cliff.