Pietralata is the 21st quartiere of Rome, identified by the initials Q. XXI, and belongs to the Municipio IV. Its name comes from the Latin Prata Lata meaning large fields, which is possibly a reference to the large amount of nature and vegetation present.

Monte Sacro is the 16th quartiere of the city of Rome in Italy. As a quarter, or second level administrative division, it is one of two that comprise the first level division of Municipio III.