fresco was covered with stucco reliefs of which only a few remains survive. The villa was built and modified in four stages, the earliest of Republican date, the latest of the time of Constantine the Great. In the nineteenth century the villa belonged to the convent of Santa Maria in Via Lata; it may never have passed into private hands. A new series of more meticulous modern excavations was initiated in 1970. Modern history The new cemetery of Rome was established in Prima Porta in 1945, on a project by the architect Elena Luzzatto. With its extension of 140 hectares, the Cimitero Flaminio is the largest cemetery in Italy; it is crossed by 37 km of internal roads, on which vehicles and buses circulate. Pope Francis, having previously said Mass on All Soul's Day at Rome's Campo Verano Cemetery, said that Mass here in 2016. In 1965, heavy rains made two near Tiber tributaries, which had no protective banks, to flood the area, generating infrastructural and economic damage. Water level was two meters high at some points. Geography The zone is located 12 kilometres north of the city center, along the Via Flaminia and just a kilometre outside of the Grande Raccordo Anulare highway. It is located on the right bank of the Tiber, where the Via Tiberina leads away from the Via Flaminia and another road led off along the Cremera to Veii. The territory of Prima Porta includes the urban zone 20L Prima Porta and part of the urban zones 20I Santa Cornelia and 20M Labaro. Boundaries Northward, the zone borders with the municipalities of Formello, Sacrofano and Riano. To the east, the zone borders with Zona Marcigliana (Z. III), whose border is marked by the river Tiber, up to the Fosso di Monte Oliviero. To the south, Prima Porta borders with Zona Labaro (Z. LVII), from which is separated by the Fosso di Monte Oliviero, then by Via della Giustiniana, up to the river Cremera. Westward, the zone borders with Zona La Giustiniana (Z. LIV), whose boundary is outlined by the Valchetta stream, and with Zona Isola Farnese (Z. LV), from which is separated by the Fosso Pantanacci. Odonymy The majority of the roads and squares of Prima Porta are named after towns of Lombardy and Latium, while some streets near the border with Zona Labaro are dedicated to Italian tapestry artists. Odonyms of the zone can