Boris Davidovich

Boris Davidovich was prince of Polotsk from after 1180 until around 1186, likely a son of the Vitebsk prince Davyd Sviatoslavich. His reign is known only from a Polotsk chronicle retold by Tatishchev: his second wife Sviatokhna, daughter of a Pomeranian prince, intrigued against his sons, including Vasilko, and forged a letter that had leading Polotsk boyars killed.

When Vasilko exposed the fraud, townsfolk rose at the veche bell, seized Sviatokhna and killed or expelled her Pomeranian followers. Boris died shortly after 1184.