Lives of the Saints by Alban Butler.
Lives of the Saints by Francis Weninger.
Lives of the Saints by Sabine Baring-Gould.
The Hodoeporican of St. Willibald by Huneberc of Heidenheim.
Writings of Saint Willibald
Art & Architecture
Medieval Religion Listserv – 2016 Dillon.
The Saints in Art by Joseph Maria von Radowitz.