See if you can find the following books. "The Merovingian Kingdom" by I. Wood and "The Holy Blood and The Holy Grail" by Michael Baigent. There are two pretty legitimate websites that you can check out also.
A Christian Thinktank and
http://www.Anglo-Saxons.net.
Trying a different search engine other than Google would help you out also. Even MSN pops up different materials than Google I have often found out. Have you checked the EWTN website? They have a section on that site for research and Church history. You can even send questions to their experts - they list the names and their expertise. I have had to use that and was very pleased.