The city of Bergen was traditionally thought to have been founded by king Olav Kyrre, son of Harald Hardr�de in 1070 AD, four years after the Viking Age ended. Modern research has, however, discovered that a trading settlement was established already during the 1020s or 1030s. Bergen gradually assumed the function of capital of Norway in the early 13th century, as the first city where a rudimentary central administration was established. The city's cathedral was the site of the first royal coronation in Norway in the 1150s, and continued to host royal coronations throughout the 13th century. The functions of capital city were lost to Oslo during the reign of King Haakon V(1299�1319). In the middle of the 14th century, North German merchants who had already been present in substantial numbers since the 13th century, founded one of the four kontors of the Hanseatic League at Bryggen in Bergen.
The principal export traded from Bergen was dried cod from the northern Norwegian coast, which started around 1100. By the late 14th century, Bergen had established itself as the centre of the trade in Norway. The Hanseatic merchants lived in their own separate quarter of town, where Middle Low German was used, enjoying exclusive rights to trade with the northern fishermen that each summer sailed to Bergen. Today, Bergen's old quayside, Bryggen is on UNESCO's list of World Heritage Site.
The city's history is marked by numerous great fires. In 1198, the Bagler-faction set fire to the city in connection with a battle against the Birkebeiner faction during the civil war. In 1248, Holmen and Sverresborg burned, and 11 churches were destroyed. In 1413 another fire struck the city, and 14 churches were destroyed. In 1428 the city was plundered by German pirates, and in 1455, Hanseatic merchants were responsible for burning down Munkeliv Abbey. In 1476, Bryggen burned down in a fire started by a drunk trader. In 1582, another fire hit the city centre and Strandsiden. In
