The League of the Macedonians and Koinon of Macedonia (Ancient Greek: Κοινὸν Μακεδόνων, romanized: Koinòn Makedónōn), was a confederationally-organized commonwealth institution regional state or koinon[1]) consisting of all Macedonian communities united around a monarch.
[3] Both numismatic and inscriptional evidence attest to the existence of the Macedonian koinon before and after the Roman conquest of Macedon.
[4] It was reorganized under the early Roman Empire and transformed into an institution related to the imperial cult as happened to all the koina of the period.
[4] The koinon, administered by local elite members, organized and financed games and festivals and were awarded Roman citizenship.
[4] The last attestation of a person "ethnically" identified as Macedonian is dated to the beginning of the 4th century AD.