26 April – Saint Basileus of Amasea

Annus Dierum Sanctorum
Faciam vos fieri piscatores hominum.
I will make you to be fishers of men.
Matthew 4.19
Posuit in capite eius Coronam de lapide pretioso.
He has set on his head a crown of precious stones.
Psalm 20.4
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Lives of the Saints by Sabine Baring-Gould.

Medieval Hagiography

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Art & Architecture

Index of Medieval Art

Warburg Institute Iconographic Database

Saints and their Emblems

26 April – Saint Richarius

The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

La vie des saints 

Medieval Hagiography

BHL, Supplement

Acta Sanctorum

The Life of Saint Richarius by Alcuin (in Latin)

Art & Architecture

Index of Medieval Art

Wikimedia Commons

Centula

Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – clefs, fontaine.

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

Music

Cantus: A Database for Latin Ecclesiastical Chant