Which architects changed Donato Bramante’s plan for St. Peter’s Basilica after his death?

Following the death of Donato Bramante in 1514, several architects were commissioned to continue work on St. Peter’s Basilica and subsequently modified his original Greek cross plan.12

The architects who succeeded Bramante and altered his design include:

• Raphael, Fra Giovanni Giocondo, and Giuliano da Sangallo: Commissioned by Pope Leo X, these architects modified the original Greek cross plan into a Latin cross with three aisles separated by pillars.1
• Antonio da Sangallo the Elder, Baldassarre Peruzzi, and Andrea Sansovino: These architects continued the work following the death of Raphael in 1520.1
• Antonio da Sangallo the Younger: Entrusted with the project by Pope Paul III, he returned to Bramante’s plan and erected a dividing wall between the new construction and the remaining parts of the old basilica.1
• Carlo Maderno: Later, under Pope Paul V, Maderno extended the nave to the east, definitively changing the structure into a Latin cross to accommodate liturgical requirements.12

While Michelangelo was later appointed chief architect, he notably discarded the additions of his immediate predecessors and reverted to a version of Bramante’s original Greek cross plan.32