League of the Macedonians
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) consisting of all Macedonian communities united around a monarch. It can be paralleled from the Epirote League, but it seems that the Macedonian koinon had far less power than that of the Epirote Molossians. The capital, or headquarters, of the Macedonian koinon was the city of Beroia.