18 June – Saint Marcus & Saint Marcellianus

Saints Marc et Marcellien et leurs parents (France, Paris. Bibliothèque nationale de France, Département des manuscrits, Français 51 f.46)
Compositions artistiques (about)
Libro del Compendio della vita dei santi
Annus Dierum Sanctorum
Deridebat vibrantem hastam.
He was laughing him to scorn.
> Job 41.20
The Book of Saints

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 

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

Breviarium Romanum – Latin & English.

Art & Architecture

Index of Medieval Art

BeWeB

Europeana

Portail Biblissima

POP : la plateforme ouverte du patrimoine

Warburg Institute Iconographic Database 

Medieval Religion Listserv – 2016 Dillon.

Catacomba di Basileo (Basilica dei Santi Marco e Marcelliano)

Saints and their Attributes

Music

Cantus: A Database for Latin Ecclesiastical Chant

18 June – Saint Elizabeth of Schönau

Vision de sainte Élisabeth de Schönau (France, Paris. Bibliothèque nationale de France, Département des manuscrits, Français 316 f.275)
Klauber Print
Ste. Elizabeth, vierge (St. Elizabeth, Virgin), June 18th, from Les Images De Tous Les Saincts et Saintes de L'Année (Images of All of the Saints and Religious Events of the Year), Jacques Callot (French, Nancy 1592–1635 Nancy), Etching; second state of two (Lieure)
Les Images De Tous Les Saincts et Saintes de L’Année
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Dictionary of Saintly Women

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Medieval Hagiography

BHL

Acta Sanctorum

Writings of Saint Elizabeth

Letters

Art & Architecture

Portail Biblissima

Medieval Religion Listserv – 2016 Dillon.

The Saints in Art by Joseph Maria von Radowitz.