To have access to the sea, a canal 700 metres long was built between Kattegat and Himleån.
From the middle of the 16th century and onwards the city suffered devastation on many occasions.
In 1545 a major fire broke out, and large parts of the city were destroyed during the Northern Seven Years' War.
Through support from the Danish state and attempts at forced resettlement, a phase of reconstruction was begun at the end of the 16th century.
However, another fire broke out in 1597 and during the Kalmar War the city was so ravaged that king Christian IV of Denmark decided to move the city to its present-day location.