 On Dagobert's accession, Arbogast was appointed Bishop of Strasbourg, and was famed for sanctity and miracles.Still according to the "vita", Arbogast brought back to life Dagobert's son, Siegebert, who had been killed by a fall from his horse.Siegebert had been boar hunting with his father’s huntsmen in forests along the Ill River near Ebersheim, and became separated from the others.