In addition to containing the daily cycle of prayer, Books of Hours sometimes include magical spells or incantations, reflecting their lay owners’ concerns over physical and spiritual dangers. Stowe MS 16, a Book of Hours produced in London shortly before 1410, is an interesting example. This manuscript is mainly known to scholars because it includes a miniature of the Annunciation that has been attributed to Herman Scheerre (fl. c. 1388–c. 1422), a Flemish or German illuminator who was one of the most influential artists in early 15th-century England. blogs.bl.uk
The Hours of the Virgin Mary (London, c. 1410): Stowe MS 16, f. 9r
Richard III Society 