In comparison with Peruzzi's style, it is what Gluck's melody is to Mozart's.

The course of public events prevented this scheme from being carried out.

First came the pontificate of Adrian VI., so sluggish in art-industry; then the pontificate of Clement VII., so disastrous for Italy and Rome.

Many years elapsed before art and literature recovered from the terror and the torpor of 1527.
Peruzzi indeed returned to his office at S.Peter's in 1535, but his death followed in 1537, when Antonio da Sangallo remained master of the situation.
Sangallo had the good sense to preserve many of Peruzzi's constructive features, especially in the apses of the choir and transepts; but he added a vast vestibule, which gave the church a length equal to that of Raffaello's plan.

Externally, he designed a lofty central cupola and two flanking spires, curiously combining the Gothic spirit with Classical elements of style.