In the Treaty of Soldin, the Teutonic Order purchased Brandenburg's supposed claim to the castles of Danzig, Schwetz (Świecie), and Dirschau (Tczew) and their hinterlands from the margraves for 10,000 marks on September 13, 1309.
Odkritje je bilo objavljeno v okrožnici Mednarodne astronomske zveze (IAUC 8165) .