Ringstaholm Castle
The Ringstaholm castle was on an island of the river Motala ström in Swedish historical province Östergötland . It was located near Lake Glan near Fiskeby and was one of the most powerful castles in Sweden in its time. Today there are only a few remains of the wall. King Charles VIII of Sweden is said to have been born in the castle.
Ringstaholm was first mentioned in 1316. By swap it came into the possession of Bo Jonsson Grip in 1377 and was the seat of one of his bailiffs who administered the surrounding Harden , which together formed the province of Ringstholms Lan. In 1404 the castle was withdrawn from the crown. In 1425, Erich von Pommern appointed Henrik Styke, of German descent, as provincial administrator, who had to give up the castle during the Engelbrekt uprising . At the beginning of 1470 the then owner, Knight Trotte Karlsson, was driven out of the castle and the building burned down.
Later archaeological excavations, during which the foundation walls were exposed, showed that part of the castle hill had been created by filling.
Coordinates: 58 ° 35 ′ 24 ″ N , 16 ° 6 ′ 54 ″ E
