1975
National Gallery of Art, 1492
National Gallery of Art, 1870
National Gallery of Art, 1936
National Gallery of Art, 1905
National Gallery of Art, 1864
National Gallery of Art, 1459
National Gallery of Art, 1635
National Gallery of Art, 1929
National Gallery of Art, 1973
National Gallery of Art, 1900
National Gallery of Art, 1958
![Francesco I Sforza, 1401-1466, 4th Duke of Milan 1450 [obverse]](https://api.nga.gov/iiif/6aa7524d-35df-4d1d-a24b-9e8f959e9e8b/full/843,/0/default.jpg)
