Modern Hagiography
Lives of the Saints by Alban Butler.
Medieval Hagiography
The Cult of Saints in Late Antiquity Database
The Golden Legend (and illustrations)
Art & Architecture
Europeana (but do not know if this is today’s Saint Marina)
Warburg Institute Iconographic Database
Guide to Christian Iconography: Images, Symbols, and Texts
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.
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 