Principality of Halych
Meanwhile, Vladimir succeeded in escaping from his dungeon in Hungary, and in 1190 Duke Casimir II sent Polish troops to the Principality of Halych to support his claims. At the approach of the expedition, the boyars rose up against the Hungarians and expelled the unpopular Andrew. Vladimir asked his uncle Prince Vsevolod III Yuryevich of Vladimir to support his rule. Vsevolod Yuryevich demanded that all the Rus’ princes, Roman among them, pledge not to challenge Vladimir in Halych, and they agreed.