|This is a National Monument of Brunant and as such may not be modified or dismantled.|
|Location||Dortmund, Cape Cross Parish|
The Adriankastel is an early 17th century fortress located in Dortmund, Brunant. Named after King Adrian I, it was built from 1621-1633 to protect his summer villa at modern-day Koningstad. It is the only star shaped fort in Brunant. It ended active military use in 1871, but was converted into a prison, serving in that capacity until 1932, being made a National Monument in 1933. In 1940, the castle was put to use to defend against possible German invasions, but the fortress fell to Nazi paratroopers on 22 May 1941 without fighting a shot.
The fortress was used for executing prisoners (by firing squad), with the last being that of October Plot assassin Henry Hinds in 1932.