The Piccolomini Library, north west wall: detail of the central fascia with the arms of Cardinal Todeschini Piccolomini and two Piccolomini coats quartered with the arms of Aragon. In the Library you can see the ten stories about Aeneas Sylvius Piccolomini, future Pope Pius II, (1503 - 1508), frescoes by Bernardino di Betto, known as Pinturicchio.