12 August – Saint Euplius of Catania

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Lives of the Saints by Sabine Baring-Gould.

Victories of the Martyrs by Saint Alphonsus Liguori.

Medieval Hagiography

BHL, Supplement 

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Art & Architecture

Index of Medieval Art

Catalogo generale dei beni culturali

BeWeB

Portail Biblissima

Medieval Religion Listserv – 2016 Dillon.

Music

Cantus: A Database for Latin Ecclesiastical Chant