La basílica se encuentra a lo largo de la via Portuense y fue construida por orden del Papa Dámaso, en el siglo IV d.C., dentro de las catacumbas de Generosa, donde fueron enterrados los mártires Simplicio, Faustina y Beatriz.
El lugar de culto semisubterráneo, descubierto tras las investigaciones arqueológicas realizadas durante la segunda mitad del siglo XIX, se presenta como un gran edificio dividido en tres naves de diferentes anchuras. Fue concebido con un trazado irregular para facilitar la entrada a las catacumbas que se realizaba por la puerta del Introito ad Martyres, a la derecha del ábside.
Varias tumbas encontradas en su interior atestiguan que la basílica también servía como lugar de enterramiento. Tras su abandono, ocurrido a finales del siglo VI, los restos de los mártires fueron trasladados a la basílica de Santa Bibiana.
Informaciones
At the VI mile of the Via Portuense, along the right bank of the Tiber, on a hill later called Monte delle Piche, epigraphic sources testify to the existence of a pagan sanctuary dedicated to the goddess Dia: the priestly college of the Fratres Arvales was in charge of this ancient cult.
At a certain point, this hill began to be used as a pozzolana quarry, both underground and in the open. Probably between the end of the 3rd century A.D. and the beginning of the 4th century A.D., the quarry was abandoned and was used by the Christian community as a burial place, becoming the cemetery ad sextum Philippi or super Philippi, known as the Generosa catacomb. The martyrs Simplicio, Faustino and Beatrice were buried in the catacomb. Later Pope Damasus (366-384 AD) had a semi-hypogean basilica built, discovered by chance and excavated in the mid-19th century by G.B. De Rossi.
The entire basilica was brought to light in the 1980s by the Pontifical Commission for Sacred Archaeology: the excavations revealed a building of considerable size, measuring about 20x14 metres in width, leaning on three sides against the tufa bank of the hill that had been excavated for this purpose.
It was divided into three naves, of different widths, (it was accessible only from the west), with a sort of narthex on the front and an apse that was rather deformed and off-centre with respect to the longitudinal axis of the basilica, which was thus slightly oblique: this was precisely to fit the already existing tomb of the martyrs, buried in the catacomb. The floor was not found, but numerous pit tombs were found underneath it. Some of them were located near the apsidal area, in front of the altar: here masonry coffins, closed by marble epigraphs, which then served as the floor of the church itself, came to light. Two in particular can be dated to 382 and 394 respectively, which means that construction began during the Damasian period, or at least under Pope Damasus. The Damasian basilica retained its funerary function at least until the end of the 5th or beginning of the 6th century, after which it ceased to be used as such.
Location
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