The migration of Moldavian Cumans or their assimilation by Vlachs was probably complete by 1332; that year, the Cuman Bishopric was given an ethnically neutral name, taken from the Milcov River. By then, the core areas of their settlement were emerging as the twin entities of Kunság and Jazygia. This separation had occurred in 1323, when 18 "family heads" of the Jazyges declared their secession from Kunság. In the late 14th century, at the end of a slow process, the Cumans' land was split into distinct subregions, both of them enclaves in Hungarian land. An area between Szolnok and Debrecen became Greater Cumania ("Nagykunság") while an area between Kalocsa and Szeged became Little Cumania ("Kiskunság").