6 August – Saint Sixtus II

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

Lives of the Saints by Sabine Baring-Gould.

The Liturgical Year by Dom Guéranger.

An Alphabet of Saints by Robert Hugh Benson, Reginald Balfour, and Charles Ritchie.

Victories of the Martyrs by Saint Alphonsus Liguori.

Legends of the Blessed Sacrament Gathered from the History of the Church and the Lives of the Saints by Emily Mary Shapcote.

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

La vie des saints

Tradition in Action

Medieval Hagiography

BHL, Supplement

Acta Sanctorum

Inscription at Tomb written by Pope Damasus (Carmen X)

Liber pontificalis 

The Golden Legend (and illustrations)

Writings by Pope Sixtus II

Documenta Catholica Omnia 

Art & Architecture

Index of Medieval Art

Catalogo generale dei beni culturali

BeWeB

Portail Biblissima

Warburg Institute Iconographic Database 

Cappella Niccolina, Palazzi Pontifici, Vatican painted by Fra Angelico (see also, and also)

Portrait in the Sistine Chapel by Sandro Botticelli

in situ
photo source
Post-Biblical Saints Art Index
Saints and their Attributes

Music

Cantus: A Database for Latin Ecclesiastical Chant

6 August – The Transfiguration of Our Lord

Kloster Sankt Johann, Müstair
Annus Dierum Sanctorum
Reformabit corpus humilitatis nostrae configuratum corpori claritatis suae.
He will reform the body of our lowness, made like to the body of his glory.
Philippians 3.21
Speculatores facti illius magnitudinis.
We were eyewitnesses of his greatness.
2 Peter 1.16

Modern Christology

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

Lives of the Saints by Alban Butler.

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 

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

Tradition in Action – I & II

Biblical Texts

Matthew 17 

Mark 9 

Luke 9 

Medieval Christology

Homily on the Transfiguration by Pope Saint Leo the Great

Breviarium RomanumLatin & English.

Art & Architecture

Index of Medieval Art

Catalogo generale dei beni culturali

BeWeB

Portail Biblissima

POP : la plateforme ouverte du patrimoine

6C Mosaic at Mount Sinai

6C Mosaic at Sant’Apollinare in Classe

Transfiguration by Duccio

Transfiguration by Fra Angelico

Panel on the Bronze Doors of Florence Baptistery by Lorenzo Ghiberti

Transfiguration Altarpiece by Perugino

Transfiguration by Giovanni Bellini, and another

Transfiguration by Raphael

Transfiguration by Lorenzo Lotto

Transfiguration by Paolo Veronese

Gustave Doré’s illustrations for La Grande Bible de Tours (see also)

Wikipedia Entry 

Warburg Institute Iconographic Database 

Guide to Christian Iconography: Images, Symbols, and Texts 

Medieval Religion Listserv – 2016 Dillon.

Music

Cantus: A Database for Latin Ecclesiastical Chant

Hymns for the Transfiguration 

Customs & Devotions

Feastday Cookbook

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.

5 August – Saint Oswald of Northumbria

Modern Hagiography

Bibliotheca Sanctorum

Martyrologium Romanum

Roman Martyrology

Sanctorale Catholicum

A Menology of England and Wales

Lives of the Saints by Alban Butler.

Lives of the Saints by Francis Weninger.

Lives of the Saints by Sabine Baring-Gould.

Character Calendar

Pictorial Lives of the Saints

Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden.

Stories of the Saints Fourth Series Saints of the Early Church by Mary Seymour.

Lives and Legends of English Saints by L.M. Shortt.

Legends of the Saxon Saints by Aubrey De Vere, and also.

Tradition in Action

Medieval Hagiography

BHL, Supplement 

Acta Sanctorum

Bede’s Ecclesiastical History – Book III, Chapters I to XIII 

The Life of Saint Oswald by Eadmer (in Latin; in English translation, but not open access)

Aelfric’s Sermon

Art & Architecture

Index of Medieval Art

Portail Biblissima

POP : la plateforme ouverte du patrimoine

Wikimedia Commons

Europeana

Warburg Institute Iconographic Database 

12C Reliquary Head of Saint Oswald at the Metropolitan Museum of Art 

12C Reliquary Head of Saint Oswald in the Hildesheim Cathedral Treasury (flip through first gallery of images)

“Saint Oswald’s Many Heads” – a Zoom presentation on the head reliquaries.

12C Fresco of Saint Oswald in Durham Cathedral 

13C Manuscript Illumination (cannot verify supposed location)

Friedhofskirche Oberzeiring (about)

Cartoon for window in the Church of St Mary the Virgin by Edward Coley Burne-Jones (1875).

Post-Biblical Saints Art Index
Saints and their Attributes

Legends of the Monastic Orders as Represented in the Fine Arts by Mrs. Jameson.

A Handbook of Christian Symbols and Stories of the Saints as Illustrated in Art by Clara Erskine Clement.

Lives and Legends of the English Bishops and Kings, Mediaeval Monks, and Other Later Saints by Mrs. Arthur Bell.

Saints and their Symbols: A Companion in the Churches and Picture Galleries of Europe by E. A. Greene.

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