25 September – Saint Firmin of Amiens

Mausolée d’Adrien de Hénencourt dans la cathédrale Notre-Dame Amiens

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

Pictorial Lives of the Saints 

Pictorial Half Hours with the Saints by Auguste François Lecanu.

La vie des saints

Medieval Hagiography

BHL, Supplement 

Acta Sanctorum

Acts of Saint Firmin (Latin)

The Golden Legend 

Art & Architecture

Index of Medieval Art

Portail Biblissima

Wikimedia Commons

16C Funerary Monument with Scenes from the Life of Saint Firmin / images

Saints and their Attributes

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.

Music

Cantus: A Database for Latin Ecclesiastical Chant

Customs & Devotions

Festival of San Fermín in Pamplona