Lioni is a town and comune in the province of Avellino, Campania, Italy. Its population was, in 2008, of 6,390.
Located in western Irpinia, the municipality borders with Bagnoli Irpino, Calabritto, Caposele, Morra De Sanctis, Nusco, Sant'Angelo dei Lombardi and Teora. It is 50 kilometres (31 mi) from Avellino and is linked by a mountain road to the ski resort of Laceno.
The town's name appears for the first time in a deed of gift dated 883, with which the Lombard prince Sicardo granted the abbess of S. Sofia a property located in "Lions" (Lioni).
The ancient settlement was probably one of the smaller neighboring towns of Ferentino, a Samnite stronghold destroyed by the Romans during the violent wars that bloodied the area.
The remains of Cyclopean walls typical of Samnite fortified villages were found on mount Oppido between Lioni and Caposele. Samnites built these fortified walls because they were constantly besieged by the Romans. The walls encompassed an area large enough to hold houses, barns, and land for pasture.
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