[1] Francis James Child collected three variants, two fragmentary, in The English and Scottish Popular Ballads.
All three recount the tale where a rebuffed Sir Aldingar slanders his mistress, Queen Eleanor, and a miraculous champion saves her.
Accused, Queen Eleanor notes that Sir Aldingar is false, and that her belief that dreams were false is disproved, because she dreamed of a beast that had stolen her crown and headdress, and would have carried her off if a merlin had not stopped it.
Mortally wounded, the knight calls for a priest for Confession and admits to framing the queen.
[6] In the Erl of Toulouse, the hero is merely a disinterested champion, a knight, but the plot is nevertheless recognizably the same as Sir Aldingar.