The Cathedral was finished in Matera 1270, and built in "civita", the highest point visible in the city where arose the first settlement of the Sassi, on the site of a Benedictine monastery dedicated to consecrated in S.Eustachio 1082, e, as it was discovered at the beginning of '900 during construction work on the foundations of the adjacent building of the Archdiocesan Seminary, It was built on an artificial embankment to further raise its position (It remains visible from all points of the ancient city and the surrounding countryside). During these works they were dug deep trenches that revealed in 12 meters, as he descended in depth, all old residential sections of the city: medieval houses, an early Christian church and houses of the same era, Byzantine relics such as coins and architectural remains , another Roman houses plan, Greek graves with major vessels that are part of the typical grave goods, and finally the remains of pottery ingubbiata characteristic of the early Iron Age. A "snapshot", in conclusion, the ancient life of Matera.