Born to one of the most illustrious families of Burgundy, his education was provided by his parents, who were virtuous Christians. As a youth, Gangulphus was known for his great honesty, chastity, and propriety, and visited churches and read religious texts, avoiding the company of libertines. When his parents died, he became a model landowner, taking care of the household economy with ease and industry and also providing for the churches and the poor on his land. When it came time to marry, he chose a woman who did not share his virtues.