Now available in paperback, this is the first English translation of the most important work of political thought of the fifteenth century. The Catholic Concordance is the first major treatise to argue for consent through representative councils as a major prerequisite for legitimate law and government, and is the most learned and original work associated with the conciliar movement in the late medieval church. Cusa's arguments influenced such thinkers as Luther, Bruno and Locke, and Professor Sigmund's introduction places his work in its full historical and philosophical context. The volume contains all the standard series features including a chronology, note on sources and bibliography, and as one of the earliest formulations of the view that political legitimacy rests on consent, The Catholic Concordance will be of interest to a wide range of scholars and students of the history of European ideas.