Casteggio

Clastidium, was a village of the Ligurian tribe of Anamares in Gallia Cispadana, on the Via Postumia, 5 miles east of Iria and 31 miles west of Placentia. Here in 222 BC, Marcus Claudius Marcellus defeated the Gauls and won the spolia opima; in 218 BC, Hannibal took it and its stores of grain by treachery.