A Franciscan scholar and theologian, John Peckham (c.1230-92) was appointed archbishop of Canterbury by the pope in 1279. His register survives at Lambeth Palace and is the chief source for his archiepiscopacy. This three-volume edition, prepared by Charles Trice Martin (1842-1914) between 1882 and 1885, rearranges the documents from their original thematic order to a chronological one, and omits the purely formal items, published elsewhere. The text is mostly in Latin, with some Anglo-Norman documents, for which a translation is provided in Appendix 1. Volume 3 contains letters 562-720, from July 1284 to July 1292. Topics include Anglo-Welsh relations and disputes between the Franciscans and other orders at Oxford. Appendix 2 contains an abstract of the entire register, describing the documents left out of this edition. Also provided is an index to the entire work.