"The King Who Wished to Marry His Daughter" is a Scottish fairy tale collected by John Francis Campbell in Popular Tales of the West Highlands, listing his informant as Ann Darroch from Islay.[1]
It is Aarne-Thompson type 510B, unnatural love. Others of this type include Cap-o'-Rushes, Catskin, Little Cat Skin, Allerleirauh, Donkeyskin, The She-Bear, Tattercoats, Mossycoat, The Princess That Wore a Rabbit-Skin Dress, The Bear and The Princess in the Suit of Leather.[2]