He was the Edwin Erle Sparks Professor Emeritus of French and Medieval Studies at the Pennsylvania State University until his retirement in 2012, a position he had held since 1998.
He is a leading expert on the Arthurian legend and has written and edited numerous books, papers, and articles on the topic.
He also oversaw the first complete English translation of the French Vulgate and Post-Vulgate Cycles, released as the five-volume (alternatively ten-volume) Lancelot-Grail: The Old French Arthurian Vulgate and Post-Vulgate in Translation.
He was knighted in France's Ordre des Palmes académiques, first as a Chevalier in 1988, and subsequently elevated to the rank of Officier in 2003.
[1] The first full English translations of the Vulgate and Post-Vulgate Cycles were overseen by Norris J.