 He has been allocated as a son of William of Gellone and his second wife Guitbergis (or Vuithbergis) on the basis of the "Liber Manualis" of Dhuoda, wife of Bernard of Septimania, one of William's sons by his first wife.Otherwise, he has been recently hypothesised as the son or grandson of Adalard, Count of Chalon, who defended that site against Waifer of Aquitaine.Warin was thus Count of Chalon by heredity or by grateful gift of the king on account of his father's service.