About Lawrin Armstrong Lawrin Armstrong is a professor at the Center for Medieval Studies, cross-appointed to the Departments of History and Economics, at the University of Toronto. Books by Lawrin Armstrong The Politics of Law in Late Medieval and Renaissance Italy edited by Lawrin Armstrong & Julius Kirshner foreword by Lauro Martines The Idea of a Moral Economy Gerard of Siena on Usury, Restitution, and Prescription by (author) Lawrin Armstrong The Politics of Law in Late Medieval & Renaissance Italy Forty Years On by (author) Lawrin Armstrong & Julius Kirshner foreword by Lauro Martines The Politics of Law in Late Medieval and Renaissance Italy edited by Lawrin Armstrong & Julius Kirshner foreword by Lauro Martines