Until the death of Duke
Mestwin II in 1294, the
Duchy of Pomerelia on the
Baltic coast, stretching from the border with the Imperial
Duchy of Pomerania in the west to the
Prussian territory of the Order state at the
Vistula river in the east, had been held by the
Samborides dynasty, liensmen of the Polish
Piast rulers.
Przemysł II, King of Poland since 1295, incorporated Pomerelia () into the
Lands of the Polish Crown, against the protest of the Imperial
Margraviate of Brandenburg referring to the
Treaty of Arnswalde signed with Duke Mestwin in 1269. The following year, the
Ascanian margraves instigated the kidnapping and killing of King Przemysł, probably backed by King
Wenceslaus II of Bohemia, who aimed for the Polish crown. King Wenceslaus II prevailed against his Piast rival
Władysław I the Elbow-high and was crowned King of Poland in 1300. He ruled in Pomerelia with the assistance of the local
Swenzones noble family. Upon the assassination of his son
Wenceslaus III in 1306, the
Přemyslid dynasty became extinct, and Duke Władysław was able to occupy the Pomerelian lands. The Swenzones, fearing for their assets and sinecures, called for Margrave
Waldemar of Brandenburg, whose troops occupied the territory up to the city of
Gdańsk. Władysław reacted by calling the forces of the Teutonic Order, who, under the command of
Heinrich von Plötzke in 1308, re-conquered Gdańsk and most of Pomerelia. However, after the
Teutonic takeover, they denied the handover to Władysław, as the duke refused to pay the requested expense allowance. Instead, they concluded the 1309
Treaty of Soldin with Margrave Waldemar, whose resistance from the beginning had been relatively weak and who was willing to sell off his claims to Pomerelia. ==Battles==