 Its territory is part of the central-southern zone of the Apennines included between the Mainarde mountains and the Matese massif, inhabited in the antiquity by Pentri Samnites that set their capital in Bojano.Its inhabitants had certainly involved in the Samnite Wars as well as in social ones against Rome suffering the Pentri's genocide perpetrated by Lucius Cornelius Sulla.The Roman domination Latinized the Samnium leaving also a greatest influence on Pietraroja dialect, in which it is lost every trace of Oscan language previously spoken by Samnites.