The Cumans, also known as Polovtsy (Slavic for yellowish) were a nomadic West Turkic tribe living on the north of the Black Sea along the Volga. They are identified with the Western branch of the Kipchaks.
Cumania is a name formerly used to designate several distinct lands in Central and Eastern Europe inhabited by and under the military dominance of the Cumans, a nomadic tribe of Western Kipchaks also known as the Polovtsians.
Cumania was primarily a political name, referring to the leading, integrating tribe or clan of the confederacy or state.
Cumania was also preserved as part of the Roman Catholic ecclesiastical structure with a "Diocese of Cumania" existing until 1523 in what is now Romania, long after the Cumans ceased to be a distinct group in the area.
Cumania is a name formerly used to designate the lands inhabited and under the military dominance of the Cumans/Kipchaks/Polovtsians, a Turkic tribe living in Eastern Europe, in the 11th and 12th centuries.
Later, for a short time period, in Western sources Cumania also referred to the area in eastern Wallachia and southern Ukraine (centered on the lowlands of Bugeac and Baragan), referring to the area where the first contact between the Cumans and the western states took place, and where, later, the Cumans would accept Catholic Christianity.
The disappearance of the military entity did not mean the end of the term Cumania, which was still preserved as part of the ecclesiastical structure until 1523, to refer to the Roman Catholic "Diocese of Cumania", long after the Cumans ceased to be a distinct group in the area.