Worthy of attention is the Sixteenth Century Portal built for the facade of the Basilica from a design attributed by some to Bramante and by others to Antonio da Sangallo the Younger. In 1537 Nerucci built it into the facade of the Basilica, whence it was removed and placed in its present position in 1580. It is admirable for its exquisitely classical style, its graceful proportions and for the elegant and restrained relief of its decorations, that bring it into relief against the austere grey earthware walls of the Palace.