Encyclopedia of the Middle Ages
Provides "articles on all aspects of the period from the fifth to the fifteenth century. It explores art, architecture, religion, law, science, language, philosophy, and theology, as well as cultural, religious, intellectual, social and political history. With a focus on focus on Europe and Christendom..."
First published 1997 in French by Editions du Cerf; first published in English in 2001 by James Clarke and Co.; online edition 2001, Oxford University Press