San Lorenzo is a neighbourhood of Naples

Naples

Naples is a city in Southern Italy, situated on the country's west coast by the Gulf of Naples. Lying between two notable volcanic regions, Mount Vesuvius and the Phlegraean Fields, it is the capital of the region of Campania and of the province of Naples...

, southern Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

. It incorporates the precise geographical center of the ancient Greco-Roman city, centered on the intersection of Via San Gregorio Armeno and Via dei Tribunali.

It also includes the area at the extreme east end of the historic center of the city and includes the church and street of San Giovanni a Carbonara

San Giovanni a Carbonara

San Giovanni a Carbonara is a church in Naples, southern Italy. It is located at the northern end of via Carbonara, just outside what used to be the eastern wall of the old city...

 as well as the eastern section of via dei Tribunali (the "street of the courthouses") once known as "via della Vicaria

Vicaria

Vicaria is a neighbourhood of Naples, southern Italy. It takes its name from the eastern section of via dei Tribunali , in the neighbourhood of San Lorenzo, once known as "via della Vicaria", since the Vicaria Vicaria (Italian: "vicarage," in the secular meaning of "residence of the...

", since the Vicaria (the still prominent Palazzo Ricca at the east end of the street) housed the main tribunal under the Spanish vicerealm.

The modern area is situated over archaeological ruins of considerable interest, some of which may be visited beneath the church of San Lorenzo Maggiore

San Lorenzo Maggiore (Naples)

San Lorenzo Maggiore is a church in Naples, Italy. It is located at the precise geographic center of the historic center of the ancient Greek-Roman city, at the intersection of via San Gregorio Armeno and via dei Tribunali...

. With 49,275 inhabitants on 1.42 km² (2001 census), 34,701 inhabitants per km², it is the most densely populated neighbourhood of Naples and all Italy.