Grotta Campana
Formello, Italy
The Grotta Campana or Tomba Campana is an Etruscan tomb in Veii, which was rediscovered in 1843 by Giampietro Campana. For a while it was considered to contain the oldest known Etruscan frescoes. It is named after the owner of the land where and when the tomb was discovered. Because of a lack of inscriptions, it is unknown who was buried in this tomb. The tomb has not been dated with any precision.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).