1977
National Gallery of Art, 1799
National Gallery of Art, 1622
National Gallery of Art, 1935
Crown Point Press, 1998
National Gallery of Art, 1936
National Gallery of Art, 1885
National Gallery of Art, 1973
National Gallery of Art, 1939
National Gallery of Art, 1619
National Gallery of Art, 1575
National Gallery of Art, 1778
National Gallery of Art, 1761
![2 from Landing [artist's proof]](https://api.nga.gov/iiif/93dabf9a-3475-4ad2-b622-0d6c86ca3f9e/full/843,/0/default.jpg)
![Gregory XIII (Ugo Buoncompagni, 1502-1585), Pope 1572 [obverse]](https://api.nga.gov/iiif/c978870c-e444-4f1e-8eb1-748758ad2abd/full/843,/0/default.jpg)
