1800–1899
National Gallery of Art, 1971
National Gallery of Art, 1957
Rosenwald, Lessing Julius, 1460
Rosenwald, Lessing Julius, 1576
National Gallery of Art, 1935
National Gallery of Art, 1936
National Gallery of Art, 1896
National Gallery of Art, 1903
National Gallery of Art, 1937
Rosenwald, Lessing Julius, 1912
National Gallery of Art, 1400
![Sixtus IV (Francesco della Rovere, 1414-1484), Pope 1471 [obverse]](https://api.nga.gov/iiif/3a538c6d-adea-420f-bbcc-b241c54384a3/full/843,/0/default.jpg)