Örebro Castle is located on an islet in Svartån in Örebro, Närke. The castle has the shape of a rectangle with elaborate circular towers in the corners and contains about 80 rooms, in addition to the basement which has been used as a prison.
The first time Örebro castle is mentioned is 1364 when Duke Albrekt of Mecklenburg († 1412) in a letter to Rostock says he has “conquered duo castra, Sundby and Örebro”, but probably the castle is much older than that. During the Middle Ages the castle was besieged many times and inhabited by both kings and chiefs, both Swedes and Danes
From 1434 to 1436, Engelbrekt lived Engelbrektsson († 1436), and from 1436 King Karl Knutsson (Bonde) († 1470) became.
Svante Nilsson Sture joined the council in 1482 and at the same time became chief of the Örebro castle.
In February 1499 Hans of Oldenburg and Kristina of Saxony in Uppsala were crowned Swedish regents. Kristina received a morning gift at the coronation of Örebro Castle
At the beginning of the 16th century, Sten Sture became d.y. new castle master after performing his mission in Lübeck to the full satisfaction. The siege of the Danes destroyed the castle but after Gustav Vasa took possession of the castle in 1522 he rebuilt what was destroyed. He also held a council meeting there in February 1522.
In 1573, during the reign of Johan III, a rebuilding was begun which lasted until 1627 when the castle took the shape it has today
At the beginning of the 1600s, the castle belonged to Duke Karl, who often held court there and also convened Parliament there in 1606 and 1610. Duke Karl began to expand the castle and with the help of the builder Christoffer Pahr, the castle got a uniform square appearance with the cannon tower in the corners. After the completed rebuild, which ended in 1627, it had to expire again. The king was almost never there and the governors who were allowed to live there if they wanted to live in a log cabin next door. The castle was used instead as a prison, cereal warehouse and weapons storage
After another period of decay (in 1738 one of the towers collapsed) it was repaired again, and in 1762 the old Renaissance castle was transformed into a baroque castle
I början av 1800-talet skedde på nytt en renovering och 1897-1901 fick slottet sitt nuvarande yttre utseende tack vare medel från riksdagen samt privata bidrag. Arkitekt vid detta tillfälle var Thor Thorén. Ombyggnaden gav då slottet en stark prägel av Vasarenässans och speglar tidens nationalromantiska arkitekturstil.
I övrigt fortsatte slottet att vara fängelse och förråd och samtidigt residens och landskansli. I slutet av århundradet restaurerades det återigen. Man knackade bland annat bort putsen från slottets ytterväggar för att få fram ett ålderdomligt utseende
Örebro slott ägs av staten och inrymmer idag konferenslokaler, sammanträdesrum ett slottsmuseum längst ner i ena tornet och ett kafé högst upp i ett annat