During the 15th-century, the island of Kungsholmen was also called Munklägret (Monk's Camp) because of the activities of the abbey in the area.
At the end of the 15th century, it was headed by Kanutus Johannis, who contributed several volumes to its library.
[1] After the Siege of Tre Kronor (castle) on 9 May 1502, the defeated Queen, Christina of Saxony, was kept prisoner here by Sten Sture the Elder.
The monks were forced to leave the buildings, which were used as a hospital and as a residence for the former nuns of St. Clare's Priory, Stockholm.
The skeleton of a medieval monk was found buried complete, save for its left leg which was lost during renovations in 1945.