Son of Garin, the vavasour.
All Chrétien tells us about him is that he rode with his father to confer with their lord Tibaut of Tintagel. This suggests a good relationship between father and son, as well as steadiness and realiability on the young man’s part.
Source
Perceval, or Le Conte del Graal | Chrétien de Troyes, late 12th century