John of Pavia was

Bishop of Pavia The Diocese of Pavia ( la, Dioecesis Papiensis) is a see of the Catholic Church in Italy. It has been a suffragan of the Archdiocese of Milan only since 1817.St. John
Catholic Online

References

813 deaths Italian Roman Catholic saints 9th-century Italian bishops Bishops of Pavia Year of birth unknown {{Italy-saint-stub