Its reign ended in 1482 thanks to a siege laid to the castle under the leadership of the bishop of Münster. Therefore, the town now was under Münster authority until finally count Anton I won back the town as well as the castle in 1547.

When the last heir of Anton, Christian, died in 1647, Delmenhorst again fell under Oldenburg custody. As Oldenburg belonged to Danish kings and the Oldenburg regent of that time was a relative of the Danish king,