ノルマン人による南イタリア征服
Leeds University Medieval History Texts Centre, with primary sources available in translation under the heading "The Norman Kingdom of Sicily"
Gaufredo Malaterra, De rebus gestis Rogerii Calabriae et Siciliae comitis et Roberti Guiscardi ducis fratris eius at The Latin Library
William of Apulia, Gesta Roberti Wiscardi at The Latin Library
Lupus Protospatarius Barensis, Rerum in regno Neapolitano gestarum breve chronicon, ab anno sal. 860 vsque ad 1102 at The Latin Library