Among the political results of this diplomatic activity are the papal support for the Reconquest of Granada, the sharing of the New World between Spain and Portugal through the "Bull Inter Caetera" in 1493 (see Treaty of Tordesillas), the Holy League for the fight against the Turk culminating in the victory of Lepanto in 1571, among others.

During the 17th and 18th centuries the palace was the center of a lavish and lively world of festivities that also animated the Piazza di Spagna, the scene of the most brilliant events of its time, public spectacles sponsored by the Spanish ambassador.

[1] The embassy houses a collection of Gobelin tapestries of the 17th century that belonged to the Bourbon-Orleans family from the Galliera Palace in Bologna, with Roman and biblical motifs.

The walls of the formal dining room are adorned with three splendid woolen and silk tapestries from the 18th century, originating from the Royal Palace of Madrid, representing scenes from the life of Telemachus, according to cartons drawn by Rubens.

The halls have the presence of paintings of the Prado Museum of illustrious authors such as Federico Madrazo, Vicente López, Nattier, Mengs, Mario Nuzzi, among others.