28 July – Saint Nazarius and Saint Celsus

10C Fresco in the Museo Civico di Castelvecchio in Verona (author’s own photo)
12C Fresco in the Museo Civico di Castelvecchio (author’s own photographs, about)

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.

The Liturgical Year by Dom Guéranger.

Character Calendar 

Pictorial Lives of the Saints 

Our Birthday Bouquet Culled from the Shrines of the Saints and the Gardens of the Poets by Eleanor C. Donnelly.

The Lives of Saints, with Other Feasts of the Year, According to the Roman Calendar by Peter Ribadeneira.

La vie des saints

Medieval Hagiography

BHL, Supplement 

Acta Sanctorum

The Cult of Saints in Late Antiquity Database

Epigram by Augustine for Church of Saint Nazarius in Milan (San Nazaro Maggiore)

The Golden Legend (and illustrations)

Breviarium Romanum – Latin & English.

DACL (about)

Art & Architecture

Index of Medieval Art

Menologion of Basil II (about)

Panel of Averoldi Polyptych by Titian  in the church of Santi Nazaro e Celso in Brescia, also Paintings of Flagellation and Beheading by Paintings by Paolo da Caylina il Giovane and an Adorazione dei pastori con i santi Nazaro e Celso

Wikimedia Commons

Catalogo generale dei beni culturali

BeWeB 

Portail Biblissima

Warburg Institute Iconographic Database 

Medieval Religion Listserv – 2016 Dillon.

Post-Biblical Saints Art Index
Saints and their Attributes

Sacred and Legendary Art volume II by Mrs. Jameson.

A Handbook of Christian Symbols and Stories of the Saints as Illustrated in Art by Clara Erskine Clement.

The Saints in Art with Their Attributes and Symbols, Alphabetically Arranged by Margaret E. Tabor.

Saints and their Symbols: A Companion in the Churches and Picture Galleries of Europe by E. A. Greene.

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