However, Volodar Rostyslavych and Rurik Rostislavich, ruled Peremyshl (Przemyśl) and Zvenyhorod respectively.

Its territories included parts of southeastern Galicia, Bukovina, and western Podolia.

Vasylko Rostyslavych extensively colonized the territories southeast of Terebovlia by employing Turkic peoples (Berendeys, Torks, and Pechenegs), and he annexed Ponyzia, thereby securing it against nomadic raiders.

Halych gained importance as a political and economic center; other important cities and fortresses included Terebovlia, Mykulyn (now Mykulyntsi), Chern (now Chernivtsi), Vasyliv (Bukovina), Onut, Kuchelemyn, Bakota, Ushytsia, and Kalius.

After the Rostyslavych dynasty died out, it was briefly an appanage principality under Iziaslav Volodymyrovych.