Principality of Halych

The Principality of Halych (Ukrainian: Галицьке князівство, romanized: Halytske kniazivstvo; Old East Slavic: Галицкоє кънѧжьство), or Principality of Halychian Rus', was a medieval East Slavic principality, and one of main regional states within the political scope of Kievan Rus', established by members of the oldest line of Yaroslav the Wise descendants. A characteristic feature of Halych principality was an important role of the nobility and citizens in political life, consideration a will of which was the main condition for the princely rule. Halych as the capital mentioned in around 1124 as a seat of Ivan Vasylkovych the grandson of Rostislav of Tmutarakan. According to Mykhailo Hrushevsky the realm of Halych was passed to Rostyslav upon the death of his father Vladimir Yaroslavich, but he was banished out of it later by his uncle to Tmutarakan. The realm was then passed to Yaropolk Izyaslavich who was a son of the ruling Grand Prince Iziaslav I of Kiev.