In this volume Franciscan scholar David Burr concentrates on the mendicant contribution to the book of Revelation. Clashing interpretive strategies developed, mirroring authority structures in the context of the new institutional framework of the university, the new methodology of scholasticism, and expanding papal authority. By the early fourteenth century a clear victory of one strategy and one structure emerges in the work of Pierre Auriol and Nicholas of Lyra, and, conversely, the defeat of another in the posthumous condemnations of Petrus Iohannis Olivi and, to some extent, Joachim of Fiore.