Cotys
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.
Greek National Party
Among the unhappy nation of the Hellenes Philip and Perseus had, long before declaring war against Rome carried on a lively double system of proselytizing, attempting to gain over to the side of Macedonia on the one hand the national, and on the other—if we may be permitted the expression—the communistic, party. As a matter of course, the whole national party among the Asiatic as well as the European Greeks was now at heart Macedonian; not on account of isolated unrighteous acts on the part of the Roman deliverers, but because the restoration of Hellenic nationality by a foreign power involved a contradiction in terms, and now, when it was in truth too late, every one perceived that the most detestable form of Macedonian rule was less fraught with evil for Greece than a free constitution springing from the noblest intentions of honourable foreigners. That the most able and upright men throughout Greece should be opposed to Rome was to be expected; the venal aristocracy alone was favourable to the Romans, and here and there an isolated man of worth, who, unlike the great majority, was under no delusion as to the circumstances and the future of the nation. This was most painfully felt by Eumenes of Pergamus, the main upholder of that extraneous freedom among the Greeks. In vain he treated the cities subject to him with every sort of consideration; in vain he sued for the favour of the communities and diets by fair-sounding words and still better-sounding gold; he had to learn that his presents were declined, and that all the statues that had formerly been erected to him were broken in pieces and the honorary tablets were melted down, in accordance with a decree of the diet, simultaneously throughout the Peloponnesus (584). The name of Perseus was on all lips; even the states that formerly were most decidedly anti-Macedonian, such as the Achaeans, deliberated as to the cancelling of the laws directed against Macedonia; Byzantium, although situated within the kingdom of Pergamus, sought and obtained protection and a garrison against the Thracians not from Eumenes, but from Perseus, and in like manner Lampsacus on the Hellespont joined the Macedonian: the powerful and prudent Rhodians