Claim: Kungshatt is a small island in Lake Mälaren, Stockholm, Sweden, and its name after the copper hat put in place on top of a cliff facing towards Vårberg.
Evidence: Kungshatt (Swedish pronunciation: [kɵŋsˈhatː) is a small island in Lake Mälaren, Stockholm, Sweden. The island is named after the copper hat put in place on top of a cliff facing towards VÃ¥rberg.