founded about A.D. 450 by Demetria, a member of the Anician family. It
was rebuilt by Leo III., A.D. 800. A bell tower was erected by Lupus
Grigarius about thirty years afterwards. The ground plan can be easily
made out, as also the remains of the altar and baptistery. In front of
the tribune is a vault, entered by stairs, similar to those in most of
the Roman Catholic basilicæ, where the martyrs were buried. The
basilica stands amidst the ruins of a large Roman villa of the
Servilii and Asinii, discovered by Signor Fortunati.
_Returning to the main road_, we soon pass the Tor Fiscali, a medieval
tower, and then the Osteria Tovolato; then we get some fine views of
the ruined aqueducts.