In progress
1 May – Saint Philip
17C Martyrdom of Saint Philip by Ribera
Stories of the Saints Third Series by Mary Seymour.
1 May – Saint Sigismund
15C Saint Sigismund travelling to Agauno
Lives of the Saints by Sabine Baring-Gould.
2 May – Saint Wiborada
Light from the Lowly volume II by Francis Butina.
St. Gallen, Stiftsbibliothek, Cod. Sang. 602, s. 276-377 (list of scenes illustrated)
4 May – Saint Florian
Panels painted by Northern Renaissance artist Albrecht Altdorfer from the life of Saint Florian, from one or two altarpieces – in the Uffizi: The Departure of Saint Florian & The Martyrdom of Saint Florian; in Nuremburg, Germany, in the Germanisches Nationalmuseum: The Presentation of Saint Florian, The Capture of Saint Florian, and The Finding of the Body of Saint Florian; in the National Gallery of Prague: The Martyrdom of Saint Florian.
Passion of Saint Florian & A Second Passion of Saint Florian
6 May – San Giovanni a Porta Latina
Roman Churches:
The Church of San Giovanni a Porta Latina in Rome (photo gallery) & The Chapel of San Giovanni in Oleo in Rome
Martyrs and Saints of the First Twelve Centuries: Studies from the Lives of the Black Letter Saints of the English Calendar by Elizabeth Rundle Charles.
7 May – Saint Stanislaus of Szczepanów
Our Birthday Bouquet Culled from the Shrines of the Saints and the Gardens of the Poets by Eleanor C. Donnelly.
12 May – Saints Nereus and Achilleus
The church of Santi Nereo e Achilleo in Rome
Lives of the Saints by Sabine Baring-Gould.
13 May – Santa Maria ad Martyres
Santa Maria ad Martyres in Rome
Life of Pope Boniface (year 609)
16 May – Saint Brendan
Book of Saints and Heroes by Mrs. Lang.
19 May – Saint Pudentiana
The church of Santa Pudenziana in Rome, 11C Fresco of Saint Pudentiana
19 May – Saint Dunstan
Saint Dunstan’s Self-Portrait – About; Inscription: Pictura et scriptura hujus pagine subtus visa est de propria manu sancti Dunstani; in Saint Dunstan’s Class Book; about
Stories of the Saints for Children Second Series by Mary Seymour.
20 May – Saint Bernardino of Siena
Oratory of Saint Bernardino in Siena
Oratory of San Bernardino in Perugia
15C Portrait by Jacopo Bellini
15C Donna Perna Being Cured on Approaching St Bernardino’s Body
15C St Bernardino Preaching in the Campo
15C Saint Bernardino of Siena Preaching
15C Saint Bernardino of Siena Rejects the Episcopal Dignity of Siena, Ferrara and Urbino
15C MS Saint Bernardino of Siena Rescuing Boys from a River
16C Portrait by Quentin Matsys
17C Portrait by El Greco
Stories of the Saints Fifth Series by Mary Seymour.
21 May – Saint Constantine
Santi Quattro Coronati in Rome – information – photos, scroll down past photographs from San Clemente to see the photographs from the chapel of Saint Sylvester – video
Frescoes in the Bardi di Vernio Chapel, Santa Croce, Florence
Storie della Vera Croce in San Francesco in Arezzo
Sala di Constantino in the Vatican
Galleria Franchetti, Ca’ d’Oro, Venice – Finding of the True Cross, Trial of the True Cross, Vision of Constantine, Victory of Constantine
The Vision of Constantine by Bernini
True Historical Stories for Catholic Children
22 May – Saint Humility of Faenza
The Beata Umilta Altarpiece by Pietro Lorenzetti
Nihil sub sole novum 
