Artist A, Maximilian I and his horse clad in armor made in 1480 by Lorenz Helmschmid, 1540s, lead point, ink, watercolor, and metallic pigment on paper, Thun-Hohenstein Album, Uměleckoprůmyslové museum v Praze (GK 11.572-B), folio 29r. Prague. Source: The Thun-Hohenstein Album, p. 180.
