However, this is disputed because other sources indicate that it was just a strategic relocation of the existing Norwegian city, the capital of Norway at one point under Sigurd I Magnusson, something frequently used for marketing and tourist purposes.

Sigurd returned to Norway in 1111, where he made his capital in Konghelle (in the vicinity of Kungälv in present-day Sweden) and built a castle there, where he kept a relic given to him by King Baldwin, a splinter reputed to be from the True Cross.

Konghelle, was captured and burnt to the ground by the forces of prince Ratibor, assisted by a fleet of 550 ships with cavalry on board (each carrying forty-four men and two horses).

They laid the town to ruins, killed a large part of the population, and abducted most of the survivors as thralls to Szczecin.

[5] The former settlement at Konghelle burned down in 1612,[6] and was subsequently moved by Christian IV of Denmark and Norway to the open slope below Bohus Fortress, and rebuilt as Kongelf.