Eustorgius I

Eustorgius I, traditionally said to have been a noble Greek, came to Milan as an imperial legate and was chosen as bishop there after the death of Protasius in 343. Seeking confirmation of his election, he traveled to Constantinople, where the emperor entrusted him with treasured relics associated with the Three Magi. Eustorgius brought these relics to Milan, a gift that helped kindle devotion to Christ’s Epiphany and left a lasting mark on the city’s Christian memory, especially at the basilica later known as Sant’Eustorgio. As bishop from 343 to about 349, he strengthened the Church through pastoral governance and public witness. He convened synods, encouraged the building of churches and basilicas, and stood firmly for orthodox faith in a time of controversy. Saint Athanasius praised him as a defender of the faith against Arianism, and Saint Ambrose honored him as a confessor. Venerated in both the Catholic and Eastern Orthodox Churches, he is remembered as patron of Arcore. His feast day is September 18.