These essays examine papal teaching authority from Thomas Aquinas in the thirteenth century to the Dominican School of Salamanca in sixteenth-century Spain. Fr. Ulrich Horst, O.P., an internationally renowned authority in historical theology, describes the various debates between the Dominicans and other orders over papal teaching authority, especially whether there should be limits placed on papal authority and, if so, what they might be. Horst reviews in a brief and masterful fashion the teaching of medieval and Catholic Reformation Dominican theologians about the teaching authority of the...