Durham Cathedral Library Incunable 21b

The fourth but only surviving volume of this 1481 edition of John Duns Scotus’ Quaestiones in quattuor libros Sententiarum was printed in Venice. This is a heavily-used copy, with evidence of having been closely studied by several monks of Durham Priory, then passing out of the library into the collection of Sir Thomas Tempest before being re-acquired by Durham Cathedral in the 20th century.

A heavily annotated page from DCL Inc. 21b, Duns Scotus’ Commentary on Peter Lombard’s Sentences