On 28 January 1578, the consistorial lawyer Pietro Aldobrandini, brother of the future Pope Clement VIII, purchased a house on Via del Corso.

At the death of Pietro Aldobrandini, his son sold the properties to Paolo Fossano, who continued the work on the side of Via del Corso.

[1] In 1616, cardinal Pietro Aldobrandini, nephew of Clement VIII, repurchased the family home, resuming construction and incorporating various houses adjacent to the wing facing the future square.

It has five floors, a broad stairway that leads to the living rooms, and a courtyard decorated with a fountain, designed by Giacomo della Porta.

[7] On 28 April 2013, during the oath of the government led by Enrico Letta, a man, Luigi Preiti, opened fire on two carabinieri, Giuseppe Giangrande and Francesco Negri, injuring the latter and a pregnant passerby.

Eventually, Pietro Tacchi Venturi was tasked by Pope Pius XI to negotiate the purchase with the newly formed fascist government of Benito Mussolini.