Rocca Pia is a comune and town in the Province of L'Aquila in the Abruzzo region of Italy. His territory extended up to the level of Cinquemiglia. Rocca Pia is also the name of a castle in Tivoli, near Rome of Italy.
The castle replaced the earlier Callisto II Borgia and derives its name from Pio II Piccolomini, the Humanist Pope who had ordered that the castle be built in Tivoli. Niccolo and Varrone were the two architects entrusted with the construction of the castle. The castle took one year to build and its main purpose was to control the city and to prevent any future revolts or violence.