The book deals with the legitimising authority of the papacy, the nature of the crusade vow and of the privilege accorded to crusaders, the developments of the indulgence, and the role of Military Orders.
- ISBN10 0333213726
- ISBN13 9780333213728
- Publish Date December 1977 (first published 1 December 1977)
- Publish Status Out of Print
- Out of Print 6 December 1991
- Publish Country GB
- Publisher Pan Macmillan
- Imprint Macmillan
- Format Hardcover
- Pages 92
- Language English