The Portrait of Fra Luca Pacioli and…
1495 CE
The Portrait of Fra Luca Pacioli and his student (?) Guidobaldo da Montefeltro, Duke of Urbino, a disputed but famous work, shows the Franciscan mathematician and expert on perspective demonstrating geometry at a table on which lie his own Summa and a work by Euclid.
His exquisitely dressed pupil ignores this and looks out at the viewer.
Attributed to Jacopo de' Barbari, the work is signed "IACO. BAR VIGEN/NIS 1495". (It is currently in the Museo di Capodimonte in Naples.)