She sought her brother to save her castle, Camelot, from a siege by Cahot the Red and the Lord of the Fens. She was kidnapped by Aristor of Amorave, who intended to marry and behead her, but she was rescued by Perceval. She lived out her days as a maiden in the Grail Castle.
She is not the same sister of Perceval who appears, unnamed, in the Vulgate Queste del Saint Graal and as Agrestizia in La Tavola Ritonda.
Perlesvaus | Early 13th century