29 August – The Decollation of John the Baptist

Beheading by Caravaggio
Annus Dierum Sanctorum
Illum oportet crescere me autem minui.
He must increase, but I must decrease.
John 3.30
In disco caput Ioannis.
In a dish the head of John the Baptist.
Matthew 14.8

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Francis Weninger.

The Liturgical Year by Dom Guéranger.

Character Calendar 

Pictorial Lives of the Saints 

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

Pictorial Half Hours with the Saints by Auguste François Lecanu.

The Lives of Saints, with Other Feasts of the Year, According to the Roman Calendar by Peter Ribadeneira.

La vie des saints

Biblical Texts

Matthew 14 

Mark 6 

Luke 9 

Medieval Hagiography

The Golden Legend (and illustrations)

Breviarium RomanumLatin & English.

Art & Architecture

Index of Medieval Art – Beheading, Head on Charger

Catalogo generale dei beni culturali

BeWeB

Portail Biblissima

POP : la plateforme ouverte du patrimoine

Wikipedia List of Depictions 

Warburg Institute Iconographic Database 

A Guide to Christian Iconography: Images, Symbols, and Texts 

Kornbluth Photography Historical Archive 

Medieval Religion Listserv – 2016 Dillon.

The Church of San Giovanni Decollato in Rome (and its painting of the Beheading)

In the Baptistery of Castiglione Olona 

Pisa Altarpiece by Masaccio

Fresco Cycle by Fra Filippo Lippi in the Duomo of Prato

Beheading by Andrea del Verrocchio

Saint John Altarpiece by Hans Memling

The Altar of Saint John by Rogier van der Weyden

Beheading by Lucas Cranach

Salome with the Head of John the Baptist by Lucas Cranach

Beheading by Vincenzo Danti (see also)

Etching of the Beheading by Rembrandt

Music

Medieval Music Database

Cantus: A Database for Latin Ecclesiastical Chant

Devotions

Manna for the Soul: Meditations for Every Day of the Year by Paulo Segneri.

Short Discourses for all the Sundays in the Year According to the Mind & Method of the Catechism of the Council of Trent by John McQuirk.