Who is Amaury de Montfort from The Reckoning and what is their importance?

Amaury de Montfort is the son of Simon and Nell de Montfort, brother of Henry, Bran, Guy, and Ellen. Amaury is a priest who is imprisoned for over six years by King Edward without cause. Guy de Montfort murders his cousin Hal in retribution for Evesham, even though Hal had nothing to do with that battle. Guy is out of the King's reach, so Amaury is punished. The Pope campaigns relentlessly for Amaury's release, and eventually King Edward relents. Edward expresses no guilt or remorse for robbing Amaury of years.