Testard, Robinet (fl.1470-1523); French. Medium: vellum. Date: 15th Century. Medieval manuscript possibly made for Louise of Savoy, wife of Charles of Angouleme; 'Vitis Alba' or White Bryony (bottom right); root used in a tincture for mucus membranes and other bodily afflictions; Provenance: National Library, St. Petersburg, Russia. Photographic Rights The Bridgeman Art Library.