21 August – Saint Bonosus & Saint Maximilian

Modern Hagiography

Bibliotheca Sanctorum

Roman Martyrology

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden. 

Victories of the Martyrs by Saint Alphonsus Liguori.

Medieval Hagiography

BHL 

Acta Sanctorum, translation

Art & Architecture

Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – groupe.

20 August – Saint Philibert of Jumièges

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Medieval Hagiography

BHL, Supplement 

Acta Sanctorum, translation

The Cult of Saints in Late Antiquity Database

Art & Architecture

Index of Medieval Art

Portail Biblissima

POP : la plateforme ouverte du patrimoine

The church of Saint Philibert in Tournus 

Saints and their Attributes
Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – loup, orage.

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.

Music

Cantus: A Database for Latin Ecclesiastical Chant

20 August – Saint Oswin

Modern Hagiography

Bibliotheca Sanctorum

Sanctorale Catholicum

A Menology of England and Wales

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden.

Lives and Legends of English Saints by L.M. Shortt.

Legends of the Saxon Saints by Aubrey De Vere.

Medieval Hagiography

BHL, Supplement

Acta Sanctorum, translation

Art & Architecture

Warburg Institute Iconographic Database

Saints and their Attributes
Saints and their Emblems

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.