Finvarra

The High king of the Irish Fairies, Finvarra was the leader of the tribe of the Daoine Sidhe, originally the Tuatha de Danaan, and lived in the Hollow Hills. The palace court, known as Finvarra's Rath, was below the Hill of Knochma. He possesses great intelligence and is a famed chess player, and many mortals have lost all they owned including their lives in a game with him. Although both he and his court have diminished in size since the coming of Christianity, his looks and virility have not been impaired, and although married to Oonagh, the most beautiful woman who ever lived, he frequently gives chase to mortal maidens, who, after a night with him, rarely wish to return to their mortal husbands.