James D. Mixson is an associate professor of history at the University of Alabama. His recent publications include "Poverty s Proprietors: Ownership and Mortal Sin at the Origins of the Observant Movement "(Brill, 2009) and several essays on the history of late-medieval religious reform. He is also the editor (with Bert Roest) of "A Companion to Observant Reform in the Late Middle Ages and Beyond" (Brill, 2015).