The combined forces of Rurik Rostislavich, who had seized the Kyiv throne, and the Olgovichi from Chernihiv advanced on Halych to overthrow the regency of Anna-Euphrosyne over the young Romanovichi, Daniel of Galicia and Vasylko Romanovich.
The allied armies encountered Halych and Volynian troops supporting the Romanovichi.
The support of Hungarian troops, which King Andrew II of Hungary sent to the aid of the Romanovichi, proved decisive.
Thanks to this, Halych was successfully defended and the army of Rurik and the Olgovichi abandoned the siege.
Hungarian assistance not only strengthened the city's defences, but also prevented the Halych boyars, opposed to the Romanovichi rule, from cooperating with the invaders.