Norman Conquest of Calabria
To
Accompany Geoffrey of Malaterra
(also
called Goffredo Malaterra = Historian and author of
The deeds of Count Roger of Calabria and Sicily and of his
brother Duke Robert Guiscard, written c. 1090)
Also of interest might be
Map of the Germanic Migrations and
Conquests.
And
here is more on the
Normans.