After 550 B.C. the Peons became an especially significant force. They were grouped in several tribes, and inhabited the area that can be located from the Grdelicka Canyon on the North, up to Pela and the confluent of the Vardar River in the south, up to the river Struma on East and Pelagonija on the West, including the river Vardar. The Peons have had a strong tribal organization, which is confirmed with the emerging of Peonic tribes that in the second half of VI c. and the first half of V c. B.C. had their money. The Peons were a dominant tribal group on the eastern side of Vardar towards the 6 c. B.C. (by KingMarkoLand)