1817
John Sell Cotman, 1838
Donald Stone, 1796
Donald Stone, 1835
Charles Robinson, 1468
Christie's, 1645
Christie's, 1613
Charles Robinson, 1491
Charles Robinson
Donald Stone, 1750
John Sell Cotman, 1803
Donald Stone, 1797
John Sell Cotman
![Federigo da Montefeltro, 1422-1482, Count of Urbino 1444, and Duke 1474 [obverse]](https://api.nga.gov/iiif/8f5d8b5e-83a1-49bc-93af-6899860656a8/full/843,/0/default.jpg)
