Margaret I of Denmark
In 1395, Queen Margaret I of Denmark used the castle as a location to conduct peace negotiations with the deposed king of Sweden, Albrecht von Mecklenburg (c. 1338–1412) who had been forced to give up the Swedish throne in her favor. The meeting at Lindholmen to determine Albrecht’s fate lasted 16 days and was attended by so many participants that tents had to be erected on the castle grounds to accommodate them.