The two eventually rescue their mother Bellisant, sister of Pepin and wife of the emperor of Greece, by whom she had been unjustly repudiated, from the power of a giant named Ferragus.
[1] The kernel of the story lies in Orson's upbringing and wildness, and is evidently a folk-tale, with a purely artificial connection to the Carolingian cycle.
The story of the wife unjustly accused with which it is bound up is sufficiently common, and was told of the wives both of Pippin and Charlemagne.
[2] A pageant of Valentine and "Urson" was presented in London at Cheapside during the Royal Entry before the Coronation of Edward VI in 1547.
[3][4] Thomas Dibdin wrote an adaptation in 1804 which was later performed at the Theatres Royal Covent Garden, Haymarket, and Bath.