Leandro,
You might look at Horus, < www.ucr.edu/h-gig/horuslinks.html >, for
links to help you research medieval archaeology. It offers many
references to western medieval history in its Contents section <
http://www.ucr.edu/h-gig/horuslinks.html >. Would you please let me
know if this resource helps you or not?
Thank you, Roc.