Amantini (Greek Ἄμαντες) was the name of an Pannonian Illyrian tribe. They greatly resisted the Romans but were sold as slaves after their defeat. The Amantini were close to Sirmium but the tribe was probably present in southern areas as well due to the existence of a city name Amantia. This would make the south Amantini the southernmost Illyrian tribe.
References
Amantini Wikipedia(Text) CC BY-SA