RESEARCH TRIP TO CHESTER UNIVERSITY FOR YET ANOTHER WIP - CAN YOU GUESS THE MC?

Another research trip to Chester University. Again The Hundred Years War, for my longer term work in progress. Very interesting stuff, if not entirely pleasant reading (the Medieval Prostitution in France). But from the book covers to the final author's notes, you know I have to do my best to get things right. 

 If I told you the MC (main character) was involved in the sieges of Orleans and Jargeau and was defeated by Joan of Arc can you guess who he is?