Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
In the regions on the east of Macedonia towards the lower Danube the most powerful of the Thracian chieftains, the brave and sagacious Cotys, prince of the Odrysians and ruler of all eastern Thrace from the Macedonian frontier on the Hebrus (Maritza) down to the fringe of coast covered with Greek towns, was in the closest alliance with Perseus.
Of the other minor chiefs who in that quarter took part with Rome, one, Abrupolis prince of the Sagaei, was, in consequence of a predatory expedition directed against Amphipolis on the Strymon, defeated by Perseus and driven out of the country. From these regions Philip had drawn numerous colonists, and mercenaries were to be had there at any time and in any number.
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Reference address : https://www.ellopos.net/elpenor/rome/3-10-third-macedonian-war.asp?pg=12