Donal mab Sibeal was the son and youngest child of Hyacinthe and Sibeal mab Necthana. He was the brother of Galanna mab Sibeal, who was two years older.
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Donal mab Sibeal was the son and youngest child of Hyacinthe and Sibeal mab Necthana. He was the brother of Galanna mab Sibeal, who was two years older.