Lykkeios was the second known king of Paeonia after Agis, who is not believed to have minted any coins. He may have been Agis’ son, but we’re not sure.
Lykkeios had the misfortune to begin his reign around the time when Philip II ascended in Macedon. At first, Philip paid a bribe to convince Lykkeios to not attack, but then he gathered his forces, invaded Paeonia, and defeated Lykkeios.
During Lykkeios’ reign, Paeonia became a vassal state of Macedon.