Complex sentence: Dardanian slaves or freedmen at the time of the Roman conquest were clearly of Paleo-Balkan origin, according to their personal names, noted as being mostly of the "Central-Dalmatian type".
Split into simpler sentences: Dardanian slaves or freedmen at the time of the Roman conquest were clearly of Paleo-Balkan origin, according to their personal names. It has been noted that personal names were mostly of the "Central-Dalmatian type".