This portrait shows the type of enriched equipment worn in the Saxon court. Arm defenses of plate are not shown here, complete sleeves of mail having still been retained. The Duke was taken prisoner at Mühlberg, 1547, by Charles V, and shows under his left eye the scar of the wound he received.

This portrait, a variant of the one formerly in the Bardini Collection, Florence, shows enriched half-armor of the early 17th Century. A version, three-quarter length, was sold with the collection of Mrs. Jacob H. Schiff (New York, American Art Association-Anderson Galleries, Dec. 7-9, 1933, no. 83, ill., as Spanish School, Portrait of a Bourbon Prince; ex-collection H.A. Lanthier, New York, 1903).