Akershus Fortress
Oslo
Akershus Fortress, located in Oslo on the banks of the Oslofjord, is a medieval castle originally constructed in the late 1290s under King Haakon V. Built to protect the city and serve as a royal residence, it has played a pivotal role in Norwegian history as a defensive stronghold, military base, prison, and government office. The fortress has survived multiple sieges, primarily by Swedish forces, and has never been conquered by force. Its strategic position by the sea made it central to Norway's defense and control, especially during the Middle Ages and Renaissance. Over centuries, the fortress was expanded and transformed into a Renaissance castle surrounded by bastion fortifications. In modern times, it serves as a military headquarters and houses important institutions like the Norwegian Home Front Museum and the Defence Museum. During World War II, it was occupied by Nazi Germany and was a site of executions. Today, Akershus Fortress remains a symbol of Norwegian resilience and history, offering visitors a glimpse into medieval architecture, military history, and royal heritage.
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Tip: The best time to visit Akershus Fortress is during late spring to early autumn when the weather is favorable for exploring the extensive grounds. Visitors are encouraged to purchase tickets in advance for museums located within the fortress to avoid queues. Guided tours are available and recommended to fully appreciate the fortress's rich history. Discounts are often available for students, seniors, and groups. Note that parts of the fortress are still used by the military, so some areas may be restricted. Check opening hours beforehand, especially during public holidays.
Interesting facts
- •Akershus Fortress has never been successfully captured by a foreign enemy despite multiple sieges.
- •It served as a prison and execution site during World War II, including the execution of Norwegian traitors like Vidkun Quisling.
- •The fortress has been continuously used for military purposes for over 700 years, adapting to changing defense needs.
- •It houses the Norwegian Home Front Museum and the Defence Museum, preserving Norway’s military history.
- •The name Akershus derives from the farm Aker and the Old Norse word 'hús' meaning castle or fortress.
History
Construction of Akershus Fortress began in the late 1290s under King Haakon V, replacing older defenses after a 1287 attack on Oslo.
Throughout the Middle Ages and Renaissance, it was repeatedly besieged but never captured by force.
The fortress was expanded into a Renaissance castle with bastion fortifications in the 1600s.
In the 19th century, it transitioned from an active military installation to a headquarters and prison.
During World War II, it was occupied by Nazi Germany and used for executions.
Post-war, it became a site for military museums and government offices, maintaining its strategic and symbolic importance.
Place Guide
The Medieval CastleLate 1290s
The original medieval castle built in the late 13th century, featuring thick stone walls and defensive towers. It served as the royal residence and key defense point for Oslo.
Renaissance Bastion Fortifications16th-17th century
Expanded in the 16th and 17th centuries into a Renaissance-style fortress with bastions and ramparts designed to withstand artillery attacks.
Norwegian Home Front MuseumEstablished 1995
A museum dedicated to the Norwegian resistance during World War II, located within the fortress grounds, featuring exhibitions on occupation and liberation.
Defence Museum
Museum showcasing Norway’s military history from the Middle Ages to modern times, including weapons, uniforms, and historical documents.
Royal Mausoleum
The burial site of Norwegian royalty, located within the fortress, reflecting its historical role as a royal residence.
Contact
Phone: 23 09 39 17
