Iziaslav Vladimirovich[a] (978–1001) was the son of Vladimir I of Kiev and Rogneda of Polotsk.

When his father converted to Christianity in 988, he had to divorce all his previous wives, including Rogneda.

He was first to make Polotsk autonomous from the grand prince of Kiev, passing his title to his descendants after his death.

[2] Iziaslav died at the young age of about 23, in 1001, surviving his mother but predeceasing his father Vladimir of Kiev, thus excluding his descendants from ever succeeding the Kievan throne, according to the so-called "rota system".

Vseslav died, still in childhood, in 1003, while Bryachislav survived to continue the Polotsk dynasty and to challenge the authority of his uncle Yaroslav the Wise.