Redigerer Drogo av Hauteville (avsnitt)

== Litteratur ==
* Brown, Gordon S. ''The Norman Conquest of Southern Italy and Sicily''. McFarland, 2003, ISBN 978-0-7864-1472-7
* Ghisalberti, Albert (ed). ''Dizionario Biografico degli Italiani: II Albicante – Ammannati''. [[Rome]], 1960.
* H. M. Gwatkin, J. P. Whitney (ed) et al. ''The Cambridge Medieval History: Volume III''. [[Cambridge University Press]], 1926.
* [[John Julius Norwich]]: ''The Normans in the South 1016-1130''. [[Longmans]]: [[London]], 1967.
* [[Ferdinand Chalandon|Chalandon, Ferdinand]]. ''Histoire de la domination normande en Italie et en Sicilie''. [[Paris]], 1907. 
* Gravett, Christopher, and Nicolle, David. ''The Normans: Warrior Knights and their Castles''. [[Osprey Publishing]]: [[Oxford]], 2006. 
* Beech, George. ''A Norman-Italian Adventurer in the East: Richard of Salerno''. 1993.