A medieval border dispute over Pomerelia triggered a six-year war for Baltic access.
The Polish–Teutonic War of 1326–1332 was not merely a local skirmish but a complex struggle for control over the Baltic coast. Driven by shifting alliances and the strategic ambition to secure Pomerelia, this conflict reshaped the political landscape of Central Europe and left a lasting mark on regional history.
The roots of the conflict lay in the contested status of Pomerelia, a Baltic territory previously held by the Samborides dynasty. After the death of Duke Mestwin II in 1294, King Przemysł II incorporated the region into the Polish Crown. This move angered the Margraviate of Brandenburg, which cited an earlier 1269 treaty to assert its own claims. The situation grew volatile following the assassination of Przemysł II and the eventual extinction of the Přemyslid dynasty in 1306, which left a power vacuum that Duke Władysław I the Elbow-high attempted to fill.
Władysław initially invited the Teutonic Order to help secure the region, but the Knights refused to relinquish control after recapturing Gdańsk in 1308. Instead, they solidified their position by purchasing Brandenburg's claims in the 1309 Treaty of Soldin. By 1320, Władysław had been crowned King of Poland and began building a coalition with Hungary and Lithuania to challenge the Order. The Teutonic Knights countered by aligning with King John the Blind of Bohemia, who also harbored ambitions for the Polish throne.
The war officially erupted in 1326, characterized by brutal raids and counter-raids across the Neumark, Kuyavia, and Dobrzyń regions. Despite a temporary peace in 1330 and the inconclusive Battle of Płowce in 1331, the Order maintained a significant military advantage. Hostilities persisted until Władysław's death in 1333. It was not until 1343 that his successor, Casimir III, finalized a diplomatic resolution. While Poland regained Kuyavia and Dobrzyń, it formally conceded Pomerelia to the Order, though the Polish monarch retained the symbolic title of Lord and Heir of Pomerania.
The legacy of this struggle extended far beyond the 14th century. The loss of Baltic access remained a recurring point of friction in European geopolitics for centuries. The region would later be reclaimed as Royal Prussia in 1466, annexed by the Kingdom of Prussia in 1772, and eventually designated as the Polish Corridor following the 1919 Treaty of Versailles. This persistent territorial tension highlights how medieval dynastic conflicts can echo through the centuries, defining the borders and diplomatic relations of modern states.
Source: Polish–Teutonic War (1326–1332)
