Francesco di Giorgio Martini, ‘Design for a Wall Monument’, ca. 1490, The Metropolitan Museum of Art

http://www.metmuseum.org/art/collection/search/459185

Image rights: The Metropolitan Museum of Art (Robert Lehman Collection, 1975), licensed under CC0 1.0 Universal

About Francesco di Giorgio Martini

Italian, 1439-1501, Siena, Italy, based in Siena, Italy