Copenhagen Municipality Copenhagen Municipality Copenhagen Municipality (), also known in English as the Municipality of Copenhagen, located in the Capital Region of Denmark, is the largest of the four municipalities that constitute the City of Copenhagen ("Byen København"), the other three being Dragør, Frederiksberg, and Tårnby. The Municipality of Copenhagen constitutes the historical city center and the majority of its landmarks. It is the most populous in the country with a population of 616,098 inhabitants (), and covers in area. Copenhagen Municipality is located at the Zealand and Amager islands and totally surrounds Frederiksberg Municipality on all sides. The strait of Øresund
History of Copenhagen a fairly wide area. In the 12th century Copenhagen assumed increasing importance and the town was reinforced with earthworks. The Roman Catholic Church erected cathedrals in Roskilde and in Lund (in what is now Sweden), which laid the basis for further development in those regional centres. As Copenhagen was midway between the two cities, it was centrally located for traffic and trading. The earliest written mention of the town dates back to the 12th century, when Saxo Grammaticus in Gesta Danorum refers to it as "Portus Mercatorum", which translates into Merchants' Harbour or in the Danish of the time "Købmannahavn".