THE CATHOLIC UNIVERSITY OF AMERICA Orsanmichele The Florentine Grain Market: Trade and Worship in the Later Middle Ages A DISSERTATION Submitted to the Faculty of the Department of History School of Arts and Sciences Of The Catholic University of America In Partial Fulfillment of the Requirements For the Degree Doctor of Philosophy © Copyright All Rights Reserved By Marie D’Aguanno Ito Washington, D.C. 2014