Okie she may not be King and Diane's daughter but she might appear in the sequel. Cause in the legend they said Tristan and Isolde had a chivalric romance in the legend. Amanda ... we don't exactly know if Isolde will even be in the show!!! Or Guinevere for all I care! I know in the legend Lancelot and Guinevere they got married so Lancelot might too.