3 May – Invention of the True Cross

San Francesco in Arezzo
Annus Dierum Sanctorum
Ierunt ligna, ut ungerent super se Regem.
The trees went to anoint a king over them.
Judges 9.8

Crux fidelis inter omnis
Arbor nobilis:
Silva talem nulla profert
fronde, flore, germine

Faithful cross, true sign of triumph,
Be for all the noblest tree;
None in foliage, none in blossom,
None in fruit thine equal be;
Pange lingua gloriosi proelium certaminis

Veni, et super nos regnum accipe.
Come thou and reign over us.
Judges 9.10
Veni, et impera nobis.
 Come thou and reign over us.
Judges 9.12

Modern Hagiography

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Francis Weninger.

Lives of the Saints by Sabine Baring-Gould.

The Liturgical Year by Dom Guéranger.

Character Calendar 

Pictorial Lives of the Saints 

La vie des saints 

La vie des 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.

Stories of the Saints for Children: The Black Letter Saints by Mrs. Molesworth.

Anecdotes and Incidents: Ecclesiastical and Religious

Goffine’s Devout Instructions on the Epistles and Gospels for the Sundays and Holydays

Short Instructive Sketches from the Lives of the Saints

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

“The Legend of the Cross” by Sabine Baring-Gould.

Medieval Hagiography

Acta Sanctorum

Socrates, Ecclesiastical History (pdf)

Theodoret, Ecclesiastical History (pdf)

The Pilgrimage of Egeria

The Golden Legend (and illustrations)

Breviarium Romanum Latin & English.

Art & Architecture

Index of Medieval Art – Search “Helena, Empress,” for the various associated scenes.

Catalogo generale dei beni culturali

BeWeB

Portail Biblissima

POP : la plateforme ouverte du patrimoine

Warburg Institute Iconographic Database

The painted fresco cycle by Piero della Francesca in the basilica of San Francesco in Arezzo – about, photographs, 3D model, photo

The church of Santa Croce in Gerusalemme in Rome

18C Invention of the True Cross

A Garner of Saints: Being a Collection of the Legends and Emblems Usually Represented in Art by Allen Hinds.

See also 18 August – Saint Helena.

Music

Medieval Music Database

Cantus: A Database for Latin Ecclesiastical Chant

Customs & Devotions

Heortology: A History Of The Christian Festivals From Their Origin To The Present Day by Heinrich Kellner.

Meditations for the Use of the Secular Clergy by Pierre Chaignon.

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

Meditations for All the Days of the Year by M. Hamon.