25 June – Saint William of Montevergine

Modern Hagiography

Roman Martyrology

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

The Liturgical Year by Dom Guéranger.

Character Calendar 

Pictorial Lives of the Saints 

Medieval Hagiography

BHL, Supplement

Art & Architecture

Vatican Founder Statue

BeWeB

Lives and Legends of the English Bishops and Kings, Mediaeval Monks, and Other Later Saints by Mrs. Arthur Bell.

The Saints in Art by Joseph Maria von Radowitz.

Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth.

“Between the images and the text of the De vita et obitu sancti Gulielmi: A portrait of William of Vercelli, founder of Montevergine”