This fine illuminated Book of Hours was produced in two stages in the second and third quarters of the fifteenth century. The manuscript contains eleven full-page miniatures and twenty historiated initials. The first stage of production includes a section attributed to the Masters of Zweder van Culemborg and the calendar (fols. 3r-14v, 52v-211v), while additional prayers illustrated in the style of the workshop of Willem Vrelant were added later in the fifteenth century (fols. 16r-50v…