21 November – Saint Albert of Louvain

Rubens
Archduke Albert with His Patron Saint, Albert of Louvain (Study for St. Ildefonso Receives the Chasuble from the Virgin)
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Scholarly Article

Medieval Hagiography

BHL, Supplementum

Art & Architecture

Index of Medieval Art

17C Print

Medieval Religion Listserv

Post-Biblical Saints Art Index
Saints and their Emblems

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

19 November – Saint Pontian

Oderisio da Benevento, porta in bronzo della facciata, 1127. Figure dei primi vescovi della citta: “Sanctus Pontianus Papa et Martyr”. Presumibilmente integrazione tarda. Troia, concattedrale della Beata Vergine Maria Assunta in Cielo
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Roman Martyrology

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

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

Medieval Hagiography

BHL

The Cult of Saints in Late Antiquity Database

Liber pontificalis

Writings

Documenta Catholica Omnia

Art & Architecture

Index of Medieval Art

Catalogo generale dei beni culturali

BeWeB

Europeana

Wikimedia Commons

Catacomb of Saint Callixtus, see also

Sistine Chapel, North Wall

In situ
Post-Biblical Saints Art Index
Saints and their Emblems