The story
The parish of Hvidovre originally covered the villages of Hvidovre, Valby, and Vigerslev. The civil parish of Hvidovre ('Hvidovre Sognedistrikt' or 'Hvidovre Sognekommune') was formed in 1803. In 1841, it was merged with Frederiksberg under the name Hvidovre–Frederiksberg Sognekommune (civil parish of Hvidovre–Frederiksberg) but the two were again split in 1858 and Valby and Vigerslev were transferred to Copenhagen in 1901.
Hvidovre Municipality was established with the 1970 Danish Municipal Reform, covering the parishes of Hvidovre, Risbjerg Parish, Strandmark. Avedøre was transferred from Glostrup to Hvidovre in 1974.
Hvidovre municipality was not merged with other municipalities on 1 January 2007 as part of nationwide Kommunalreformen ("The Municipality Reform" of 2007).
From Wikipedia’s article on Hvidovre Municipality, shared under CC BY-SA 4.0.5