It fronted on to the ancient forum, part of the pavement of which, with a base for the equestrian statues of Castor and Pollux (as the inscription upon it records) has been laid bare beneath the present Piazza Vittorio Emanuele.
Opposite the Royal Terrace is an equestrian statue of George III., erected in 1809 in commemoration of his jubilee.
He was not, however, destined to compass the downfall of the Sullan regime; the crisis of the Slave War placed the Senate at the mercy of Pompey and Crassus, who in 70 B.C. swept away the safeguards of senatorial ascendancy, restored the initiative in legislation to the tribunes, and replaced the Equestrian order, i.e.
According to Mommsen, they were persons who possessed the equestrian census, but no public horse.
From this time dates the existence of the equestrian order as an officially recognized political instrument.
By the lex Sempronia (123 B.C.) the list was to be drawn from persons of free birth over thirty years of age, who must possess the equestrian census, and must not be senators.
By assisting his superior in his efforts to protect the provincials from the extortions of the publicani, or farmers of taxes, Rufus incurred the hatred of the equestrian order, to which the publicani belonged.
The Via Roma, another important centre of traffic which gives on to the Via Carlo Felice near the Piazza Ferrari, leads to the Piazza Corvetto, in the centre of which stands the colossal equestrian statue of Victor Emmanuel II.
His remains were removed in 1842 to Caracas, where a monument was erected to his memory; a statue was put up in Bogota in 1846; in 1858 the Peruvians followed the example by erecting an equestrian statue of the liberator in Lima; and in 1884 a statue was erected in Central Park, New York.
The place, usually called the Grand Square, is an oblong open space, tree-lined, in the centre of which there is an equestrian statue of the prince after whom it is named.