The site lies beside Saint Eleuterio hamlet, overlooking Miscano Valley [it] at an elevation of 575 m, about 15 km north of the modern Ariano Irpino, within Irpinia historical district.

letter addressed to his friend Titus Pomponius Atticus;[5] he described the place (under the name of Equus Tuticus) as a regular stopping point along the route to Apulia.

[8] Near Aequum Tuticum, just to the north, a stretch of Via Traiana has been discovered along Miscano [it] torrent, whereas two sepulchral areas show up to the south and west;[9] aerial photographs have also shown the route of Via Herculia.

The settlement suffered damage from an earthquake in the second half of 4th century, but shortly afterwards a villa, showing a compartment decorated with a vast polychromatic mosaic, was installed above the older buildings.

The high-medieval sources mention the locality (probably already uninhabited) as Saint Eleuterio, which is a name of Greek-Byzantine origin (at the end of 9th century Byzantine troops, coming from Apulia, had occupied Benevento, which they held for several years).