14 August – Saint Marcellus of Apamea

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Lives of the Saints by Sabine Baring-Gould.

La vie des saints 

Medieval Hagiography

BHL 

Acta Sanctorum

Theodoret, Ecclesiastical History

Art & Architecture

Medieval Religion Listserv – 2016 Dillon.