Interested in tales of King Arthur, knights of the round table, the holy grail? I have just posted to the Andy Holt Virtual Library collection a first draft of a page devoted principally to the manuscripts containing the works of Chrétien de Troyes, at the inspirational heart of arthurian lore:

Chrestien de Troyes 
http://www.utm.edu/staff/bobp/vlibrary/chrestien.shtml