This inventory provides a key to the hitherto virtually uncatalogued collection of the Catharijneconvent, a museum of Christian culture. Its manuscript holdings are particularly rich in liturgy and devotion, including dozens of Books of Hours, many with fine miniatures, as well as a number of venerable older treasures, over a thousand items in all (including fragments). This book is the vol. 1 (but the second to appear) of a series of inventories of a completely novel type, giving of each item not only a brief description but also an illustration (small, but of natural size). A necessary complement is the separate fascicle explaining the method of these inventories (identical for all volumes), which has been published in 2009: Introduction - Rules.