Quirinal Hill

In the Middle Ages, the Torre delle Milizie and the convent of St. Peter and Domenic were built, and above Constantine's building was erected the Palazzo Pallavicini-Rospigliosi; the two famous colossal marble statues of the Horse Tamers, generally identified as the Dioscuri with horses, which now are in the Piazza Quirinale, were originally in this palazzo.

They gave to the Quirinal its medieval name Monte Cavallo, which lingered into the 19th century, when the hill was transformed beyond all recognition by urbanization of an expanding capital of a united Italy.

The healthy[3] cool air of the Quirinal Hill attracted aristocrats and papal families that built villas where the gardens of Sallust had been in antiquity.

In the 18th century, Ferdinando Fuga built the long wing called the Manica Lunga, which stretched 360 meters along via del Quirinale.

In front lies the sloping Piazza del Quirinale where the pair of gigantic Roman marble "Horse Tamers" representing Castor and Pollux, found in the Baths of Constantine, were re-erected in 1588.

Several collections are in this Palazzo, including tapestries, paintings, statues, old carriages (carrozze), watches, furniture, and porcelain.

The present façade was built in 1732–1734 by the architect Ferdinando Fuga on the orders of Pope Clement XII Corsini, whose coat-of-arms, trumpeted by two Fames, still surmounts the roofline balustrade, as in Piranesi's view.

Schematic map of Rome showing the seven hills and Servian Wall
A mid-18th century etching of the Palazzo del Quirinale by Giovanni Battista Piranesi : The colossal Roman " Horse Tamers " or Dioscuri are in the foreground, but the obelisk from the Mausoleum of Augustus (erected 1781 – 1786) has not yet been set up between them.
An etching of the Hill, crowned by the mass of the Palazzo del Quirinale, from a series I Sette Colli di Roma antica e moderna published in 1827 by Luigi Rossini (1790–1857): His view, from the roof of the palazzo near the Trevi Fountain that now houses the Accademia di San Luca , substituted an imaginary foreground garden for the repetitious roofscape.
The Constitutional Court of Italy in Palazzo della Consulta , is among the Quirinal Hill government buildings in Rome.
Piazza del Quirinale