Modern Hagiography
The Lives of the Saints by Francis Weninger.
Ancient Texts
Art & Architecture
Warburg Institute Iconographic Database
Menologion of Basil II (about)
Music
Settings of Benedicite – Latin text and translation – Ralph Vaughn Williams
Customs & Devotions
“The Prayer of Azariah and The Song of the Three Holy Children”
Modern Hagiography
Saint Eusebius of Vercelli has multiple feast days. The traditional feast, today, is not the day of his death, which was August 1st, and his modern feast day is August 2nd. December 16th is the approximate date of his elevation as bishop.
Roman Martyrology – 2 August, 16 December
Lives of the Saints by Alban Butler.
Lives of the Saints by Sabine Baring-Gould.
The Liturgical Year by Dom Guéranger.
The lives of saints, with other feasts of the year, according to the Roman calendar by Peter Ribadeneira.
Pope Benedict XVI on Eusebius of Vercelli
Medieval Hagiography
The Cult of Saints in Late Antiquity Database
The Golden Legend (and illustrations)
Breviarium Romanum – Latin & English
Writing of Saint Eusebius
Brief letter written by Saint Eusebius to the Emperor Constantine
Art & Architecture
Catalogo generale dei beni culturali
Warburg Institute Iconographic Database
Codex Vercellensis Evangeliorum
The Cathedral of Vercelli is dedicated to Saint Eusebius, and it has an ambo sculpted by Benedetto Antelami, a Romanesque sculptor, but I have not yet found a photograph of it.
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.
Nihil sub sole novum 