Answer
Polotsk was never ruled by Alexander Nevsky. It was part of the Grand Duchy of Lithuania at the time, a rival principality to Novgorod and Vladimir-Suzdal, ruled by Nevsky. Nevsky's rule was mainly focused in the Novgorod and Vladimir-Suzdal regions, where he is renowned for defending against invaders like the Teutonic Knights and Swedes, solidifying his legacy as a prominent medieval Russian leader and saint.