Jundree
In Perlesvaus, a pagan princess who was the sister of King Madaglan of Oriande.
Madaglan suggested that Arthur take Jandree as his queen after Guinevere’s untimely death. Jandree loved Arthur but despised his religion; Arthur likewise balked at the thought of marrying a heathen. Because of these religious differences, the match never took place.
After her brother died, and after Perceval began to destroy paganism in her lands, Jandree began to question her own faith. She received a holy vision and subsequently converted to Christianity, taking the baptismal name Salubre. She lived out the rest of her days in penitence and died in a hermitage.
Source
Perlesvaus | Early 13th century