Bolokhovians (Ukrainian: bolokhy). Slavs who lived along the upper reaches of the Boh River, Horyn River, Sluch River, and Teteriv River basins. Their name derives from the Rus’ city Bolokhiv (first mentioned in 1150). Their lands bordered on the Principality of Galicia-Volhynia and Kyiv principality. Between 1232 and 1236 the Bolokhovian princes were allies of the Galician boyars in their struggle with Prince Danylo Romanovych and resisted efforts to annex them to the Principality of Galicia-Volhynia. During Batu Khan's invasion they surrendered to his forces, becoming tatars’ki liudy (the Tatars' people). Consequently, Danylo Romanovych led campaigns against the Bolokhovians in 1241 and 1254–5, annexing their lands to his principality.