1 May – Saint Augustin Schoeffler & Saint Jean-Louis Bonnard

The Martyrdom of Augustin Schœffler, also known as Saint Augustinô Schoeffler Đông, on May 1, 1851 in Sơn Tây
The martyrdom of Jean-Louis Bonnard, also known as Saint Bonnard Hương, on May 1, 1852 in Nam Định

Modern Hagiography

Bibliotheca Sanctorum – Saint Augustine Schoeffler & Saint Jean-Louis Bonnard.

Martyrologium Romanum

The Holiness of the Church in the Nineteenth Century: Saintly Men and Women of Our Own Times

The New Glories of the Catholic Church – Saint Augustin Schoeffler & Saint Jean-Louis Bonnard

Art & Architecture

Wikimedia Commons – Saint Augustin Schoeffler & Saint Jean-Louis Bonnard

1 May -Saint Brioc

tableau : saint Brieuc évêque convertit au christianisme un riche seigneur de l’Armorique
Sceau de Philippe de Saint-Brieuc (France, Paris. Bibliothèque nationale de France, Département des manuscrits, Latin 17024 f.170)
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

A Menology of England and Wales

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Medieval Hagiography

BHL, Supplementum

Acta Sanctorum

Art & Archaeology

Portail Biblissima

POP : la plateforme ouverte du patrimoine

Wikimedia Commons

Saints and their Attributes
Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – bourse, colonne de feu, dragon, feu, fontaine, groupe.

1 May – Saint Marculf

Marcoult, Marcouf, Marcoul or Marcou

Stained-glass window life of St Marcouf (Coutances cathedral)
Saint Marcou de Corbény (France, Sens. Bibliothèque municipale, Ms. 39 )
Tableau : saint Marcou
The Book of Saints

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Medieval Hagiography

BHL

Acta Sanctorum

Art & Architecture

Index of Medieval Art

Wikimedia Commons

Saints and their Attributes
Saints and their Emblems

Caractéristiques des saints dans l’art populaire by Charles Cahier – cou, malades, pain, prince.