As part of the Rus Principality the area was later organized as the Volodymyr-Volynsky Principality some lands of which later were organized into numerous other smaller principalities of Terebovlia, Zvenyhorod, Peremyshl.
Principality of Terebovlia was a Kievan Rus principality established as an appanage principality ca 1084 and was given to Vasilko Rostislavich (his brothers, Volodar Rostyslavych and Riuryk Rostyslavych, ruled Peremyshl and Zvenyhorod and respectively).