 According to the "Annales Fontanellenses", Charles then spent Christmas in Bourges and stayed into January 850.Rodulf may have served as guardian ("bajulus") to Charles's son, Charles the Child, when the latter was made king of Aquitaine in 855.Late in 860, Hincmar of Reims wrote a letter to Rodulf and Archbishop Frothar of Bordeaux—who may have been a kinsman of Rodulf's—outlining the difficulties of Count Stephen, son of Count Hugh of Tours, who was trying to repudiate his wife, the daughter of Count Raymond I of Toulouse.