Modern Hagiography
Lives of the Saints by Francis Weninger.
Lives of the Saints by Sabine Baring-Gould.
Medieval Hagiography
Art & Architecture
The Basilica of Saint Maternus in Walcourt, Belgium
Warburg Institute Iconographic Database
Medieval Religion Listserv – 2016 Dillon.
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.