[1] Tradition states that he was born to a pagan family at Ivrea, and was then converted to Christianity by Eusebius of Vercelli.
Gaudentius was supported in his mission by a new ally: Saint Ambrose, bishop of Milan.
Simplician, Ambrose's successor, consecrated Gaudentius as bishop of Novara in 398 AD.
A miracle reported of his death states that Gaudentius’ head continued to speak after the saint had died, so that the clergy could record and repeat his sermons.
[1] The Basilica of San Gaudenzio in Novara, as well as numerous churches throughout the region, is dedicated to him.