Duke William IV of Bavaria knocked sideways from his horse during a joust; 16th century. He wears a kettle hat; unique to tourneys of this type. A women with a sieve and a golden W can be seen on his buckler (shield); and a man with sieve and golden I on the horse's caparison. The fall happened during a joust with his brother Count Ludwig from an illustration by Albrecht Altdorfer in Duke William IV's Turnierbuch (Tournament Book). Chromolithograph from Hefner-Alteneck's Costumes; Artworks and Appliances from the Middle Ages to the 17th Century; Frankfurt; 1889. Illustration by Dr. Jakob Heinrich von Hefner-Alteneck; lithographed by C. Regnier. Dr. Hefner-Alteneck (1811-1903) was a German museum curator; archaeologist; art historian; illustrator and etcher.