12 May – Saint Rictrude

Sainte Rictrude (France, Douai. Bibliothèque municipale, Ms. 109 A f. 016v)
The Book of Saints

Modern Hagiography

The Lives of the Saints by Alban Butler.

The Lives of the Saints by Sabine Baring-Gould.

Medieval Hagiography

BHL, Supplementum

Acta Sanctorum

Art & Architecture

Index of Medieval Art

Portail Biblissima

POP : la plateforme ouverte du patrimoine

Europeana

Marchiennes Abbey

Saints and their Attributes