In this first or uppermost gallery of the catacomb on which we are dwelling, was discovered quite lately a very large crypt surrounded with corridors, sadly ruined, but with the remains of elaborate decoration still visible and with fragments of marble lying about, with pieces of sarcophagi and portions of inscriptions carefully carved, some in Greek, beautifully wrought. This area, which is quite distinct from the great cemetery in the midst of which it lies, once contained the remains of the Christian members of the noble Roman house of the Acilii Glabriones. From the inscriptions which have been found and deciphered, this burying-place of a famous family dates from the first century, and the interments from the first and following centuries.
These Acilii Glabriones whose names occur and recur in the broken inscriptions were members of a distinguished family, holding a very high position in the aristocracy of Rome under the early Emperors. We learn a good deal about a head of this illustrious house, Acilius Glabrio, from the historians Suetonius and Dion Cassius.
In the year of grace 91, Acilius Glabrio was consul, and excited the jealousy of the Emperor Domitian, who condemned him to fight with wild beasts in the gardens of one of the Imperial villas. From this deadly combat he came out victorious, but the hatred of the Emperor was not satisfied, and he exiled the powerful patrician, and eventually put him to death.
The accusation against Acilius Glabrio seems to have been that he was among the “devisers of new things” (“molitores novarum rerum”). It was a vague and mysterious charge made against various persons of high degree in the reign of Domitian. The accusation was connected with the practice of some strange foreign superstition unknown to the State religion. This crime is now generally understood to have been the practice of Christianity, and Acilius Glabrio, Clemens the near kinsman of the Emperor, and many others alluded to by Suetonius who were arraigned under this charge and put to death, were evidently Christians. This conjecture, since the recent discovery of the great crypt of the Acilii Glabriones in the Priscilla Cemetery belonging to this noble house, has become a certainty, for the Christianity of those buried there has been absolutely proved from words and sacred Christian signs carved upon the broken slabs which once formed part of the sarcophagi and loculi bearing the family name.
Thus, according to Marucchi, to Allard the well-known and scholarly historian of the Persecutions, and to De Rossi, Acilius Glabrio, the great patrician, the consul of the first century, the contemporary of the Apostles Peter and Paul and no doubt their friend and convert, was one of that aristocratic group in Rome which accepted the faith of Jesus, a group of which so little is known, and whose very existence hitherto has been generally questioned; and these, recognizing the brotherhood of slaves and freedmen and the poorest and saddest of the dwellers of the great city, not only helped them in their life, and associated them in all their dearest and most certain hopes, but gave them the “hospitality of the tomb”—constructing round the stately family crypt the corridors and funereal chambers where these poor and insignificant members of the Christian congregation might rest. The Priscilla Cemetery, dating as it does from the days of the apostle, is a great example of this loving Christian custom.
Now general tradition ascribes the foundation of this vast and ancient catacomb to Pudens, the wealthy senator; to his mother Priscilla, of whom beyond her name we know nothing; to her sainted daughters Prassedis and Pudentiana. The question then arises—Was this Pudens a member of the great house of the Acilii Glabriones? The leading Italian scholars in the lore of the catacombs think he certainly was. De Rossi even suspects that Pudens was the martyr consul himself. With our present knowledge this supposition cannot be decisively maintained. It is, however, an interesting hypothesis.
The Basilica of S. Sylvester, of which we shall speak presently, which was erected shortly after the Peace of the Church in the fourth century, was directly over the crypt of the Acilii Glabriones.
A very remarkable feature in the Catacomb of S. Priscilla are the reservoirs of water, which evidently served in very early days as baptisteries. The most considerable of these reservoirs or tanks is on the upper story of the cemetery, and is communicated with by a broad staircase of over twenty-five steps, which come out behind what was once the apsidal end of the Basilica of S. Sylvester. Marucchi describes it as “une vaste piscine encore pleine d’eau, desservie par un petit canal.” This great baptistery became, from the fourth century onward, a spot of intense interest to the many pilgrims who visited the catacomb sanctuaries.
Another large reservoir of water has been found on the second story of this vast catacomb; other and smaller tanks have also been found.
Marucchi believes that this cemetery is the one alluded to in the many traditions, including the notices in the Pilgrim Itineraries, as the special scene of S. Peter’s labours and preaching, teaching and baptizing, as the “cœmeterium beati Petri ubi baptizaverat,” as the “sedes ubi prius sedit sanctus Petrus.”