The Cumans (Polovtsi) were a Turkic nomadic people comprising the western branch of the Cuman-Kipchak confederation. After the Mongol invasion (1237), many sought asylum in Hungary, as many Cumans had settled in Hungary, Bulgaria and Turkey before the invasion.
Related to the Pecheneg, they inhabited a shifting area north of the Black Sea and along the Volga River known as Cumania, where the Cuman-Kipchaks meddled in the politics of the Caucasus and the Khwarezm Empire. The Cumans were fierce and formidable nomadic warriors of the Eurasian steppe who exerted an enduring impact on the medieval Balkans. They were numerous, culturally sophisticated and militarily powerful.
Many eventually settled to the west of the Black Sea, influencing the politics of Kievan Rus', the Galicia–Volhynia Principality, the Golden Horde Khanate, the Second Bulgarian Empire, Kingdom of Serbia, the Kingdom of Hungary, Moldavia, the Kingdom of Georgia, the Byzantine Empire, the Empire of Nicaea, the Latin Empire and Wallachia, with Cuman immigrants being integrated into each country's elite. The Cumans also had a pre-eminent role in the Fourth Crusade and in the creation of the Second Bulgarian Empire. Cuman and Kipchak tribes joined politically to create the Cuman-Kipchak confederation.