Treaty of Soldin (1466)

The Treaty of Soldin (German: Vertrag von Soldin) was signed on 21 January 1466 at Soldin (now Myślibórz) by the Brandenburgian elector Frederick II and the Pomeranian dukes Eric II and Wartislaw X.^[1] It was mediated by the town of Stettin (now Szczecin).^[1] The treaty temporarily settled a conflict about the succession of Otto III, Duke of Pomerania, who had died without issue: Emperor Frederick III, elector Frederick II as well as Eric II and Wartislaw X of Pomerania claimed to be the rightful heir of Otto's share of the Duchy of Pomerania.^[2]

The Brandenburgian elector and the Pomeranian dukes bypassed the emperor's claims, and settled for a solution where the Pomeranian dukes took the Duchy of Pomerania, including Otto's as well as their own shares, as a fief of the Electorate of Brandenburg.^[2] The implementation of the treaty failed due to the refusal of parts of the Pomeranian nobility and the town of Stettin to obey to the treaty's terms.^[3] Neither did the Pomeranian dukes enforce the treaty, and successfully intrigued against it at the emperor's court.^[3] Brandenburg tried to enforce the treaty militarily, yet initially with limited success.^[4] Frederick III, Holy Roman Emperor declared the treaty null and void in 1469,^[5] but confirmed Brandenburg's claims in 1470.^[6] The treaty of Soldin was superseded by the Second Peace of Prenzlau in May 1472, that ended the war and confirmed Pomerania as a Brandenburgian fief.^[7]