Vladimir of Polotsk
Vladimir of Polotsk (c. 1140s–1216) ruled the city from about 1184; Henry of Livonia's chronicle styles him the great king of Polotsk. In 1203 he invaded Livonia and forced the Livs to resume tribute before defeat at Holme.
In 1212 he recognized Bishop Albert's rule in exchange for free trade on the Dvina. In 1216 the Estonians called him to march on Riga, but he died suddenly aboard ship.