is a rectangular hall, 37 x 12 metres which is home to the Church of San Pietro. Underneath the sacristry of the church and near Cellomaio Street, a black and white mosaic floor from the baths was found. Other notable remains were found in the garden of the Sisters of Jesus and Mary, which is probably planted over the hypocaust system which was used to heat the water. The building structure is made up of a core of peperino gravel cement, broken up by stretches of brickwork and faced with mattone bricks. Necropolis of Selvotta The first discoveries near Selvotta, a place on the borders between Albano Laziale and Ariccia, were made in 1866 by a farmer called Lorenzo Fortunato and were analysed by the young Russian archaeologist Nicola Wendt. The German archaeologist Wilhelm Henzen was the first to suggest that the frequent references to the Legio II Parthica found in the inscriptions discovered at Selvotta would have to indicate a necropolis of the legion, located a short distance from the castra. A campaign of excavation and surveying in the area was carried out by Henzen, Hermann Dessau, and Rodolfo Lanciani at the end of the nineteenth century. Further campaigns were carried out by Giuseppe Lugli in 1908, 1910, 1913, 1945, and 1960-2 and by Maria Marchetti Longhi in 1916. In the 1960s about fifty tombs were discovered, of which two thirds had mortuary inscriptions. All were made in the same way, with the graves dug into the living rock and covered by a monolithic block of peperino in the form of a roof or a lid. In the excavations of 1960-2 two unusual graves were found: a cippus grave with a broken column, characteristic of eastern tombs and a tomb with a cremation - the only one in the necropolis. Wives and children were buried alongside the soldiers and there was no order to the arrangement of the tombs, although they were often grouped together. From analysis of the grave inscriptions it is clear that the greater part of the soldiers bore the praenomen Aurelius and therefore it is deduced that they served in the time of the legion's greatest prosperity, during the reigns of Caracalla (211-217) and Elagabalus (218-222). The women, on the other hand, have Italic names. Epigraphic documentation There is little epigraphic testimony of the Legio II Parthica and a large amount of what there is