Question

Between 1505 and 1605, the replacement for the Old St. Peter's Basilica in Rome was built. During that 100-year period, nearly every notable Roman architect was involved. Which two famous architects were most influential?

Answer

Bramante established a centralized, Greek-cross plan for St. Peter's Basilica. Michelangelo is responsible for the dome and fine detailing. Raphael, Sangallo, and della Porta did some design work at various times. The colonnaded piazza was done 50 years later by Bernini.