Örebro Castle is a medieval castle fortification in Örebro. It was expanded during the reign of the royal family Vasa and finally rebuilt around 1900. The castle sits on an island in river Svartån. Some of the rooms are used as classrooms for pupils from Karolinska Skolan.⁣⁣⁣
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For over 700 years, Örebro Castle has kept a watchful eye on anyone crossing the bridge on the River Svartån. The oldest part of the castle, a defence tower, was erected in the latter half of the 1300s. 
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This tower was extended not long after, and towards the end of the 16th century most of the impressive castle we see today was built by the then Duke but later King Charles IX of Sweden. 
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The name of Örebro comes from the small stones, called “ör” in Swedish, that a river transports. The second part of the word comes from the bridge (“bro”) that was built over this fjord. Important roads passed by this strategic place because from here one could control the traffic and the trade in the inner parts of Sweden.⁣⁣⁣