Modern Hagiography
Lives of the Saints by Sabine Baring-Gould.
Medieval Hagiography
The Life of Saint Adelaide by Odilo of Cluny (in German translation)
Writings by and to Saint Adelaide
Letters to and from Saint Adelaide
Music
Adelaide di Borgogna, an opera by Gioachino Rossini (various excerpts).
Lotario, an opera by Georg Friedrich Handel (full video)
Art
18C Libro del Compendio della Vita di tutti Santi
Warburg Institute Iconographic Database
Medieval Religion Listserv – 2015 Dillon.
The Saints in Art by Joseph Maria von Radowitz.
Nihil sub sole novum 