Piero della Francesca (c. 1415 – October was a painter of the Early Renaissance. As testified by Giorgio Vasari in his Lives of the Artists, to contemporaries he was also known as a mathematician and geometer: Madonna del parto
* English Title - Piero della Francesca: Legend of the True Cross - Exaltation of the Cross (c. Fresco, San Francesco, Arezzo, Italy) Freskenzyklus der "Legende vom Heiligen Kreuz" im Chor von San Francesco in Arezzo.
Polyptych of Saint Augustine: Saint Monica // c. 1460 // Piero della Francesca // Frick Collection, New York // Probably from the church of S. Agostino (later S. Chiara) in Borgo Sansepolcro. // An Augustinian Nun (Saint Monica), century