Loud 1996, pp. 332–33. Loud, G. A. (1996). "Continuity and Change in Norman Italy: The Campania in the Eleventh and Twelfth Centuries". Journal of Medieval History. 22 (4): 313–43. doi:10.1016/s0304-4181(96)00021-8.
Loud 1996, p. 332, places his death in 1135 and does not identify the duke who succeeded him to which he refers. Loud, G. A. (1996). "Continuity and Change in Norman Italy: The Campania in the Eleventh and Twelfth Centuries". Journal of Medieval History. 22 (4): 313–43. doi:10.1016/s0304-4181(96)00021-8.
Loud 1996, p. 335. Loud, G. A. (1996). "Continuity and Change in Norman Italy: The Campania in the Eleventh and Twelfth Centuries". Journal of Medieval History. 22 (4): 313–43. doi:10.1016/s0304-4181(96)00021-8.