11 September – Saint Theodora of Alexandria

Modern Hagiography

Bibliotheca Sanctorum

Roman Martyrology

Dictionary of Saintly Women

Lives of the Saints by Sabine Baring-Gould.

Medieval Hagiography

BHL, Supplement 

Acta Sanctorum

The Golden Legend (and illustrations)

Art & Architecture

Index of Medieval Art

Warburg Institute Iconographic Database 

Saints and their Attributes

A Garner of Saints: Being a Collection of the Legends and Emblems Usually Represented in Art by Allen Hinds.

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.

11 September – Saint Protus and Saint Hyacinthus

Annus Dierum Sanctorum
Baptizetur unus quisque vestrum in nomine Iesu Christe in remissionem peccatorum.
Be baptized every one of you in the name of Jesus Christ, for the remission of sins.
Acts 2.38

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.

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

The Golden Legend (and illustrations)

Epigram by Damasus 37 

Breviarium RomanumLatin.

Art & Architecture

Index of Medieval Art

Catalogo generale dei beni culturali

BeWeB

Portail Biblissima

POP : la plateforme ouverte du patrimoine

Medieval Religion Listserv – 2016 Dillon.

Music

Cantus: A Database for Latin Ecclesiastical Chant

11 September – Saint Paphnutius

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.

Character Calendar 

Pictorial Lives of the Saints 

La vie des saints 

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

Pictorial Half Hours with the Saints by Auguste François Lecanu.

Il libro d’oro 

Medieval Hagiography

Acta Sanctorum

Socrates, Church History 

Art & Architecture

Menologion of Basil II (about, maybe)

Lives and Legends of the Great Hermits and Fathers of the Church, with Other Contemporary Saints by Mrs. Arthur Bell.

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.