Alfred Trübner Nutt,
Studies on the Legend of the Holy Grail
“ In Campbell’s No. LXXXVI, the Daughter of King Under the Waves, Diarmaid, the fairest and bravest of the Fenian heroes, weds a fay who, as her description indicates, belongs to the same order of beings as the damsels who lure away Connla and Bran, the son of Febal. She comes to him in loathly guise, and the other heroes shrink from her; but Diarmaid, courteous as he is brave, gives her the shelter of tent and bed and has his reward. She builds for him such a castle as the fay mistress of the Knight of the Black Tomb (supra, p. 17) builds for her lover. ”
