What is "castellero"

Castellero is a comune (municipality) in the Province of Asti in the Italian region Piedmont, located about southeast of Turin and about northwest of Asti. As of 31 December 2004, it had a population of 297 and an area of .

Castellero borders the following municipalities: Baldichieri d'Asti, Monale, and Villafranca d'Asti.