25 June – Saint William of Montevergine

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

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 

La vie des saints

Tradition in Action

Medieval Hagiography

BHL, Supplement

Acta Sanctorum

Breviarium Romanum – Latin & English.

Art & Architecture

Catalogo generale dei beni culturali

BeWeB

Wikimedia Commons

Vatican Founder Statue

Santuario di Montevergine, Madonna di San Guglielmo, official website

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

Saints and their Attributes
Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – Image de N.-D., loup.

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.

25 June – Saint Prosper of Aquitaine & Saint Prosper of Reggio

San Prospero of Reggio (about)

Modern Hagiography

Bibliotheca Sanctorum – Saint Prosper of Aquitaine & Saint Prosper of Reggio

Martyrologium Romanum (both)

Roman Martyrology (Saint Prosper of Aquitaine)

Sanctorale Catholicum (Saint Prosper of Aquitaine)

Lives of the Saints by Alban Butler. (Saint Prosper of Aquitaine)

Lives of the Saints by Sabine Baring-Gould – Saint Prosper of Aquitaine & Saint Prosper of Reggi.

Pictorial Lives of the Saints (Saint Prosper of Aquitaine)

Our Birthday Bouquet Culled from the Shrines of the Saints and the Gardens of the Poets by Eleanor C. Donnelly. (Saint Prosper of Aquitaine)

Pictorial Half Hours with the Saints by Auguste François Lecanu. (Saint Prosper of Aquitaine)

La vie des saints (Saint Prosper of Aquitaine)

Medieval Hagiography

BHL, Supplement (Saint Prosper of Reggio)

Acta Sanctorum (Saint Prosper of Reggio)

Writings of Saint Prosper of Aquitaine

Call of All Nations

Art & Architecture

Index of Medieval Art – Saint Prosper of Reggio & Saint Prosper of Aquitaine

Portail Biblissima

Catalogo generale dei beni culturali

BeWeB

Wikimedia Commons – Saint Prosper of Aquitaine & Saint Prosper of Reggio

Warburg Institute Iconographic Database 

Buste-reliquaire : Saint Prosper d’Aquitaine

Post-Biblical Saints Art Index
Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – of Reggio, benediction.

25 June – Saint Gallicanus

Baptême de saint Gallican (France, Paris. Bibliothèque nationale de France, Département des manuscrits, NAF 23686 f.143v)
Annus Dierum Sanctorum
A voce angeli fugerunt populi, et ab exaltatione tua dispersae sunt gentes.
At the voice of the angel the people fled, and at the lifting up thyself the nations are scattered.
Isaiah 33.3
Angelus meus praecedet te.
My angel shall go before thee.
Exodus 32.34

Modern Hagiography

Bibliotheca Sanctorum

Roman Martyrology

Medieval Hagiography

BHL, Supplement

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Gallicanus by Hrotsvitha.

Art & Architecture

Portail Biblissima

BeWeB

Warburg Institute Iconographic Database

Vatican Colonnade

Chiesa dei Santi Maria e Gallicano, San Gallicano recommends the sick to the Madonna

Saints and their Attributes
Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – Croix, malades.