Getic elite. Several artefacts seem to have originated in the Odrysian kingdom and may well have been prestige gifts. By the middle of the 4th century there existed a Getic kingdom that was to thrive for a century. The Getic capital was Helis, which has been identified with the archaeological site of Sboryanovo, which was founded in the 330s or early 320s and housed around 10.000 inhabitants. It seems that the Getae also became active in Muntenia north of the Danube, a region that would come to constitute a part of the "Dacia" of imperial Roman historiography. The first Getic king to appear in the sources was Cothelas, who married his daughter Meda to Philip II, thus concluding an alliance between the two states. This probably happened during or shortly after Philip's conquest of the Odrysians. The kingdom survived two wars with Lysimachus and the Celtic invasion in around 280, but eventually disintegrated a few decades later. Helis/Sboryanovo was completely destroyed by an earthquake in the middle of the 3rd century. The rebellion of Seuthes and the kingdom of Seuthopolis ( 330 – second quarter of the 3rd century BC) Macedonian Thrace The conquest of the Odrysian kingdoms doubled the size of the domains ruled by Philip II, even though inland Thrace was not transformed into a Macedonian province, but was put under the loose control of a Strategos. Local Thracian rulers who seemed trustworthy were allowed to rule on Macedonian behalf, granted that they would pay a tithe and provide troops. Such troops, generally called "Thracians" or "Odrysians", participated in the Macedonian conquest of Persia under Philip's successor Alexander the Great and were probably commanded by Odrysian noblemen. Philip founded several towns in Thrace to ease Macedonian rule, most prominently Cabyle and Philippopolis. The situation south of the Haemus remained largely stable for the next few years, albeit even here, Macedon never managed to impose its rule over all Thracian tribes. Macedon's rule was precarious and a potential Odrysian upstarter could count on the support of much of the disgruntled population. Seuthes III and the Odrysian revival With Alexander's absence in Asia, the Strategoi of Thrace engaged in rebellions and failed expeditions against the Getae, greatly unsettling the country in the process. At the end of the 330s or in the mid-320s (the dating is not entirely clear), a certain Seuthes, later known as Seuthes III, instigated a Thracian