Seuthes was keen to establish a Hellenistic kingdom, although he avoided to label himself as king on his coins. Probably after the death of Alexander in 323, Seuthes founded a town at the Tonzos river, near modern Kazanlak. He named it after himself: Seuthopolis. The town was primarily based on contemporary Macedonian foundations and showed heavy Greek influences. Seuthopolis probably acted as the capital of Seuthes' kingdom. The size and power of this kingdom should not be overestimated, as its influence was most likely limited to the hinterland of Seuthopolis, in particular the valley between the Rhodopes in the south to the Haemus in the north and the Syrmus in the west to the upper Tonzos in the east. Thus, his realm only covered the northwestern fringes of the former Odrysian empire. Seuthes also only issued bronze coins, which were insufficient to challenge the Macedonian economic hegemony and its royal mintings in more precious metals.