1967
National Gallery of Art, 1570
National Gallery of Art, 1554
National Gallery of Art, 1800
National Gallery of Art, 1939
National Gallery of Art, 1937
National Gallery of Art, 1950
National Gallery of Art, 1638
National Gallery of Art, 1809
National Gallery of Art, 1941
National Gallery of Art, 1548
National Gallery of Art, 1900
National Gallery of Art, 1938
![Ercole II d'Este, 1508-1559, 4th Duke of Ferrara 1534 [obverse]](https://api.nga.gov/iiif/0be44745-b086-4642-afb2-b8de5f4cd0bc/full/843,/0/default.jpg)
