Haninge Municipality (Haninge kommun) is a municipality in Stockholm County in east central Sweden. Its seat is located in Handen, a part of the Stockholm urban area. Haninge Municipality was formed in 1971 when Västerhaninge and Österhaninge were united. The municipal coat of arms depicts a capercaillie from which the name Haninge is believed to have been derived (the German word hahn means capercaillie), while the anchor symbolizes the naval base in the municipality. The German word usage is supposedly from the old German Hansa traders who operated in the area. Geography.
https://en.wikipedia.org/wiki/Haninge_Municipality