The Pamphilj Palace in Piazza Navona, today the Brasilian Embassy, was built by Girolamo and Carlo Rainaldi, but Innocent X, who had the family home at heart, called on Francesco Borromini to take part.
The work by the man from Ticino (1645 - 50) was documented by some designs that illustrate the splendour of the project.
 

. The decoration of the Great Gallery is by Borromini - then splendidly frescoed with the Stories of Aeneas by Pietro da Cortona – and of his head outside, with the "Serlian" window, also repeated on the opposite side of the church of St. Agnes, and the barrel vaulted ceiling in the great room called Palestine, placed between the two internal courtyards.