The Convent of Ara-Cœli contains much that is picturesque and interesting. S. Giovanni Capistrano was abbot here in the reign of Eugenius IV.
Let us now descend from the Capitoline Piazza towards the Forum, by the staircase on the left of the Palace of the Senator. Close to the foot of this staircase is a church, very obscure-looking, with some rude frescoes on the exterior. Yet every one must enter this building, for here are the famous Mamertine Prisons, excavated from the solid rock under the Capitol.
The prisons are entered through the low Church of S. Pietro in Carcere, hung round with votive offerings and blazing with lamps.
"There is an upper chamber in the Mamertine Prisons, over what is said to have been—and very possibly may have been—the dungeon of St. Peter. The chamber is now fitted up as an oratory, dedicated to that saint; and it lives, as a distinct and separate place, in my recollection, too. It is very small and low-roofed; and the dread and gloom of the ponderous, obdurate old prison are on it, as if they had come up in a dark mist through the floor. Hanging on the walls, among the clustered votive offerings, are objects, at once strangely in keeping and strangely at variance with the place—rusty daggers, knives, pistols, clubs, divers instruments of violence and murder, brought here, fresh from use, and hung up to propitiate offended Heaven; as if the blood upon them would drain off in consecrated air, and have no voice to cry with. It is all so silent and so close, and tomblike; and the dungeons below are so black, and stealthy, and stagnant, and naked; that this little dark spot becomes a dream within a dream: and in the vision of great churches which come rolling past me like a sea, it is a small wave by itself, that melts into no other wave, and does not flow on with the rest."—Dickens.
Enclosed in the church, near the entrance, may be observed the outer frieze of the prison wall, with the inscription C. TIBIUS. C. F. RUFINUS. M.. COCCEIUS. NERVA. COS. EX. S. C., recording the names of two consuls of A.D. 22, who are supposed to have repaired the prison. Juvenal's description of the time when one prison was sufficient for all the criminals in Rome naturally refers to this building:
"Felices proavorum atavos, felicia dicas
Sæcula, quæ quondam sub regibus atque tribunis
Viderunt uno contentam carcere Romam."
Sat. iii. 312.
A modern staircase leads to the horrible dungeon of Ancus Martius, sixteen feet in height, thirty in length, and twenty-two in breadth. Originally there was no staircase, and the prisoners were let down there, and thence into the lower dungeon, through a hole in the middle of the ceiling. The large door at the side is a modern innovation, having been opened to admit the vast mass of pilgrims during the festa. The whole prison is constructed of huge blocks of tufa without cement. Some remains are shown of the Scalæ Gemoniæ, so called from the groans of the prisoners—by which the bodies were dragged forth to be exposed to the insults of the populace or to be thrown into the Tiber. It was by this staircase that Cicero came forth and announced the execution of the Catiline conspirators to the people in the Forum, by the single word Vixerunt, "they have ceased to live." Close to the exit of these stairs the Emperor Vitellius was murdered. On the wall by which you descend to the lower dungeon is a mark, kissed by the faithful, as the spot against which St. Peter's head rested. The lower prison, called Robur, is constructed of huge blocks of tufa, fastened together by cramps of iron and approaching horizontally to a common centre in the roof. It has been attributed from early times to Servius Tullius; but Ampère[47] argues against the idea that the lower prison was of later origin than the upper, and suggests that it is Pelasgic, and older than any other building in Rome. It is described by Livy, and by Sallust, who depicts its horrors in his account of the execution of the Catiline conspirators.[48] The spot is shown to which these victims were attached and strangled in turn. In this dungeon, at an earlier period, Appius Claudius and Oppius the decemvirs committed suicide (B.C. 449). Here Jugurtha, king of Mauritania, was starved to death by Marius. Here Julius Cæsar, during his triumph for the conquest of Gaul, caused his gallant enemy Vercingetorix to be put to death. Here Sejanus, the friend and minister of Tiberius, disgraced too late, was executed for the murder of Drusus, son of the emperor, and for an intrigue with his daughter-in-law, Livilla. Here, also, Simon Bar-Gioras, the last defender of Jerusalem, suffered during the triumph of Titus.
The spot is more interesting to the Christian world as the prison of SS. Peter and Paul, who are said to have been bound for nine months to a pillar, which is shown here. A fountain of excellent water, beneath the floor of the prison, is attributed to the prayers of St. Peter, that he might have wherewith to baptize his gaolers, Processus and Martinianus; but, unfortunately for this ecclesiastical tradition, the fountain is described by Plutarch as having existed at the time of Jugurtha's imprisonment This fountain probably gave the dungeon the name of Tullianum, by which it was sometimes known, tullius meaning a spring.[49] This name probably gave rise to the idea of its connection with Servius Tullius.
It is hence that the Roman Catholic Church believes that St. Peter and St Paul addressed their farewells to the Christian world.
That of St. Peter:—