The siege was between the forces of the Catholic Deacon Knud Pederson Skanke and noble Tord Roed.

[1] The siege started in April after the Archbishop of Norway Olav Engelbrektsson had fled the country.

[1] The defenders fired their canons at the besiegers day and night, and refused several request to surrender to the protestant forces.

The reason was that the defenders heard a rumour that the noble Truid Ulfstand was on his way to Trondheim from Denmark with a force of 1500 men.

In June, Truid Ulfstand invaded that part of the country and laid siege to Hamarhus.