Wenceslaus II died in 1305 and was succeeded by Wenceslaus III, murdered in 1306. In a treaty of 8 August 1305, the margraves of Brandenburg promised to Wenceslaus III the Meissen (Miśnia) territory in exchange for Pomerelia, but that treaty was never finalized. The Teutonic Order had inherited Gniew (Mewe) from Sambor II, thus gaining a foothold on the left bank of the Vistula. Brandenburg occupied the west of the duchy after neutralizing another claimant to the area, the Cammin bishop, by burning down his see.