(b. 1450, Citta della Pieve, d. 1523, Perugia)
Christ Handing the Keys to St Peter (detail)1481-82
Cappella Sistina, Vatican
The octagonal temple with its ample porches dominates the central axis. The spatial construction is based upon a one point perspective system in which the vanishing point is located inside the doorway of the domed church, which has lateral porches.