Hněvín Castle was named after the hill it was built upon. Archaeological investigations have uncovered the remains of a castle that was there in the 9th century, but a stone castle was probably built by the Hrabišics, the owners of Most. Wenceslaus I granted Most royal city status in the 12th century and the castle becoming the seat of the district administrator.
In the 13th century, the castle was brought by Wenceslaus II to the Branibors, in the time of disputes of Wenceslaus IV. with aristocracy, the castle came to the Meissens. Only in 1406, Wenceslaus gained the castle back. In 1459, the castle was given into the hands of George of Poděbrady on the basis of the Cheb peace contract. The son of George of Poděbrady Jindřich sold the castle in 1480 to Beneš of Veitmile and in 1482 the famous meeting of Saxony princess with king Vladislaus II took place in Most. Here it came to settlement of relation Czechs and Saxony people from many years.
During the reign of Rudolf II on his order it was on Most castle Hněvín the alchemists English Edward Kelley and Greek Marek Mamugny. Rudolf ordered to city people to care about them well at the claims of both adventurers caused to city much expense. In 1595 Rudolf II sold the castle to city Most.
From rather quiet holding of castle and its remains the Most people enjoyed up to the Thirty Years War. In 1646 Swedes obtained it by quile and gave to Most people great penalties and charges. For one and a half years, the emperor's army besieged the castle but it remained in the Swedes hands. They also held it after concluding the Westphalian peace. The blame for its unfortunate the Most people gave to the castle which always attracted by its significance the enemies.
Emperor Ferdinand II for that reason permitted pulling down the castle, destruction beginning in 1651. The castle mountain desolated, at the foot there were vineyards and gardens. In year 1879 it was stopped the restaurant, in 1889 the tower with outlook which was later destroyed by a great wind. In 1896, it was stated the group of friends of Castle mountain and it was begun with the construction of city with outlook. It was finished in September 1900.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.