Duchy of Pomerania
In 1121/22, the Polish duke Bolesław III Wrymouth conquered the area along with the Duchy of Pomerania under Wartislaw I. The inhabitants were subsequently Christianized, and lost their tribal identity when they were integrated into the Duchy of Pomerania. In 1173 and 1184, Wolin was finally destroyed by subsequent Danish campaigns, all of Pomerania was under Danish suzerainty for the next decades.