The Egmond Breviary was commissioned by a duke of Guelders-Jülich (based on the coats of arms), probably Arnold van Egmond, and was produced in Utrecht. Cite as: Universiteitsbibliotheek Utrecht Hs. 12 C 17. M. Bloem, 'New light on three miniatures from the Egmond breviary*' in: Oud Holland 125 (2012) 2/3, p. 69-89. P. 82-85 p. 85 nt. 10. Sotheby's; London; Purchase; 19600201; cat. no. 246.