Missionary Labors
The defining work attributed to the brothers in the tradition is the destruction of pagan altars and sacred groves and the raising of churches in their place across northern Italy. According to one strand of the tradition, the two built one hundred churches between them; Julian is said to have built the ninety-ninth at Gozzano, dedicated to Saint Lawrence, where he was buried, while Julius built the hundredth on an island in Lake Orta, dedicating it to Saints Peter and Paul.
The earliest surviving biographical account of Julius dates from no earlier than the eighth century, and the saints' identifications and chronology are correspondingly uncertain. The brothers are described in some accounts as Greeks who came to Rome before settling at Lake Orta, and Julius is sometimes additionally styled "of Aegina."