Diarmuid Ua Duibhne (Mythology)

Diarmuid Ua Duibhne was the demigod son of the god Donn and one of the most famous members of the Irish warrior group known as the Fianna. Diarmuid, who was famed for his beauty, was given a magical love spot above his brow by a supernatural woman, which made any woman who saw it irresistible to him. It was this "blessing" that would lead to Diarmuid's death, Fianna leader Fionn's corruption, and the downfall of the Fianna.

Diarmuid initially attained fame after he defeated a massive army of soldiers during his quest to save the life of his lover. He would become one of the greatest Fianna, and Fionn's most trusted friend. All of this would change in one night.

Fionn, then an aged warrior, had decided to remarry to Grainne, the daughter of the High King of Ireland. On the night of their wedding, however, Grainne had the misfortune to look upon Diarmuid's love spot. She was instantly enamored with him. She drugged everyone at the wedding, and demanded that Diarmuid run away with her. He initially refused, but then Grainne imposed a geis (a request that could not be refused without loss of honor) on him. Diarmuid was forced to choose between dishonoring himself and betraying his friend. He chose to preserve his honor.

Diarmuid and Grainne spent the next few years on the run from Fionn. Thanks to the god Oenghus, they always managed to evade him. Fionn would eventually pardon the pair, but he never forgave Diarmuid for his betrayal. He would finally have his vengeance when he allowed Diarmuid to die after being wounded by a boar during a hunt.

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