Fredericia is a town located in Fredericia municipality in the eastern part of the Jutland peninsula in Denmark, in a sub-region known locally as Trekanten, or The Triangle. It was founded in 1650 by Frederick III, after whom it was named. The city itself has a population of 39,797 (1 January 2012) and the Fredericia municipality has a population of 50,193 (2012).