In the annals of the pontificate of Gregory XIII (1572-1585), we read of the discovery -on the 31st of May 1578– of the anonymous catacomb in the Via Anapo, then identified with the cemetery of Priscilla:
“Around the same time, outside Porta Salaria, in the excavation of the Pozzolana, the famous Cimiterio di Priscilla, lost since the time of the Goths, was unexpectedly found surrounded by various burials of the Holy Martyrs with inscriptions in different languages. The Pope sent Cardinal Savelli, his Vicar, to certify everything, and many others went there to see the antiquity. Among other things considered worthy of the memory by the French Ambassador Luigi Castegnero, and Marc Antonio Moretto, both men of great learning, was the sepulchre of Leonidas, Father of Origen, deceased more than one thousand three hundred years ago, was recognised“. (Vatican Library, Vat. lat. 12214, Annali di Gregorio XIII, libro VII, tomo II, f. 66).
Even we cannot speak of a true discovery of Christian antiquities (see here for more information), the historical and social importance of this event lies in the fact that it reawakened interest in Christian antiquities among large sections of the population: the crowd in the Vineyard was so large that Pope Gregory XIII was forced to close the gates. Equally important is the influence of this discovery on the scholars of the time, that generation of scholars who found themselves moving from theory to practical knowledge of Christian cemeteries in a very short space of time.
It is to some of them (in particular the Spaniard Alfoncso Chacón – see here) that we owe the copies of the paintings in the catacomb of via Anapo, which are now unfortunately lost.

Basic bibliography
- J. G. Deckers, G. Mietke, A. Weiland, Die Katakombe“Anonima di via Anapo” Repertorium der Malereien , Città del Vaticano 1991.
- V. Fiocchi Nicolai, Storia e topografia della catacomba anonima di via Anapo, in J. G. Deckers, G. Mietke, A. Weiland, Die Katakombe“Anonima di via Anapo” Repertorium der Malereien , Città del Vaticano 1991, pp. 1-23.
- M. Ghilardi, Le catacombe di Roma dal Medioevo alla Roma sotterranea di Antonio Bosio, in Studi Romani, 40, 2001, pp. 27–56.
- C. Cecalupo, Gregorio XIII e la nascita dell’archeologia cristiana: dal cantiere di San Pietro alla riscoperta delle catacombe, in V. Balzarotti, B. Hermanin (eds.), Gregorio XIII. Arte dei moderni e immagini venerabili nei cantieri della nuova ecclesia, Rome, forthcoming.