Trondheim 44,600), and Tiller (population: 3,595) were all merged with the city of Trondheim (population: 56,982), which nearly doubled the population of the municipality. A transfer of Klæbu (population: 6,050) to Trondheim is planned for 1 January 2020. The coat-of-arms dates back to the 13th century. To the left, there is an archbishop with his staff and mitre in a church archway. On the right, a crowned king holding scales in a castle archway. These two pictures rest on a base which forms an arch. Underneath that arch, are three male heads which symbolise the city's rank as Norway's first capital
Trondheim city and its citizens were also subject to harsh treatment by the occupying powers, including imposition of martial law in October 1942. During this time the Germans turned the city and its environs into a major base for submarines (which included building the large submarine base and bunker DORA I), and also contemplated a scheme to build a new city for 300,000 inhabitants, "Nordstern" ("Northern Star"), centred southwest of Trondheim, near the wetlands of Øysand in the outskirts of Melhus municipality. This new metropolis was to be accompanied by a massively expanded version of the already existing naval base, which