Bryachislav of Polotsk

Bryachislav Iziaslavich (c. 997–1044) was prince of Polotsk from 1001, succeeding his father Iziaslav as a child. His line was excluded from the Kievan succession as izgoi, and he fought to keep Polotsk independent.

In 1020 he sacked Novgorod, but his uncle Yaroslav the Wise defeated him on the Sudoma River; he fled, leaving his prisoners and loot behind. In the peace of 1021 Yaroslav granted him only the cities of Vitebsk and Usvyat, yet their hostility continued for years. Bryachislav expanded his principality, founded Braslaw, and died in Polotsk in 1044. His son was Vseslav the Seer.