Öregrund is a locality situated in Östhammar Municipality, Uppsala County, Sweden with 1,555 inhabitants in 2010. It is located by the coast of the Baltic Sea. Öregrund is, despite its small population, for historical reasons often still referred to as a city.HistoryThe town was granted a royal charter in 1491, by request from citizens from nearby city of Östhammar. Östhammar had once been a coastal town, but due to post-glacial rebound its harbour had become useless. The royal council granted the request to construct a city at the end of the archipelago where the sea opened. It further proclaimed "the city shall forever be known as Öregrund". The small but expanding city soon became a point of conflict. In 1520 Christian II of Denmark conquered Stockholm. A young Gustav Eriksson tried to gather an army, and Öregrund became the port whereto ships with men and weapons were transported. As a countermeasure, the Danish King had the city burnt in the winter of 1520. And so, the citizens of Öregrund had to move back to Östhammar.Not until 1555, when Gustav Eriksson had become King Gustav I of Sweden (Vasa) and stabilized the nation, were the citizens granted permission to reconstruct the city.
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