The daughter of the pagan British King Orcant of Orkney.
She found Peter, a follower of Joseph of Arimathea, wounded near her father’s castle. Taking pity on him, she arranged for a Christian in her father’s prison to be released long enough to heal Peter.
Peter later championed her father against King Luce; his victory secured Orcant and Camille’s conversion to Christianity. Camille and Peter married and had a son named Herlan.
Gawaine was one of their descendants.
Source
Vulgate Estoire del Saint Graal | 1220-1235