RAFFAELLO Sanzio
(b. 1483, Urbino, d. 1520, Roma)

Plan for the New St. Peter's

c. 1514
Drawing
Biblioteca Apostolica, Vatican

It was Bramante's death in April 1514 that turned Raphael into an architect, for Leo X promoted him to Bramante's office as architect of St Peter's. Raphael assumed the direction of the work, transforming the plans of the church from a Greek, or radial, to a Latin, or longitudinal, design.

The drawing from Serlio's book shows Raphael's design for the ground plan.