Ercole II d'Este, 1508-1559, 4th Duke of Ferrara 1534 by Pastorini, called Pastorino da Siena, Pastorino de', National Gallery of Art, Dreyfus, Gustave, Duveen Brothers, Inc., Kress Foundation, Samuel H. — VisualArtsDB
Ercole II d'Este, 1508-1559, 4th Duke of Ferrara 1534
![Wisdom Gazing at a Serpent [reverse]](https://api.nga.gov/iiif/03c07cc0-41a3-4c80-8863-1bdc5ecea8ad/full/843,/0/default.jpg)
![Sigismondo Pandolfo Malatesta, 1417-1468, Lord of Rimini and Fano [obverse]](https://api.nga.gov/iiif/88f072e3-a36a-479e-a37e-f21dfe3b2d96/full/843,/0/default.jpg)
