anchor: Kazimierz, a pragmatist, did not try to wrest control of Silesia, in the hands of Bohemia, or the territory seized by the independent state of the Teutonic Knights.
positive: As a pragmatist, Kazimierz did not try to wrest control of Silesia, which was in the hands of Bohemia, or the territory seized by the independent state of the Teutonic Knights.
negative: Teutonic Knights didn't have any state, and Bohemia didn't have control of Silesia.