Linked from
The 21 pages that link to Norman conquest of southern Italy, each with the reason it gives.
PalermoRelated: The conquest brought Palermo under Norman control in 1072.
CalabriaRelated: The Normans incorporated Calabria into their emerging southern Italian dominion.
ApuliaRelated: Norman rulers incorporated Apulian territories into a new southern Italian kingdom.
Pope Leo IXRelated: Norman expansion prompted Leo to organize armed resistance.