 Here, Artus de Bretania and Isdernus approach a tower in which Mardoc is holding Winlogee, while on the other side Carrado (most likely Caradoc) fights Galvagin (Gawain) as the knights Galvariun and Che (Kay) approach.Isdernus is most certainly an incarnation of Yder (Edern ap Nudd), a Celtic hero whose name appears in "Culhwch and Olwen", and who is Guinevere's lover in a nearly-forgotten tradition mentioned in Béroul's 12th-century "Tristan" and reflected in the later "Romanz du reis Yder" where a similar character of Queen Guenloie of Carvain (possibly Caerwent) also appears as a lover for Yder.Chrétien de Troyes tells another version of Guinevere's abduction, this time by Meliagant (Maleagant, derived from Melwas) in the 12th-century "Lancelot, the Knight of the Cart".