The Fort du Portalet is a fort in the Aspe Valley in French Pyrenees, built from 1842 to 1870. The fort, built by order of Louis Philippe I, guards the border of the Pyrenees and protects access to the Col du Somport. Fort du Portalet is located on a cliff face underneath the Chemin de la Mâture and overlooks the torrential river Gave d'Aspe. Begun in 1842 and finished in 1870, the fort replaced an earlier structure further north.
Capable of accommodating 400 men, the fort served as depot and barracks for the 18th Regiment of Infantry between 1871 and 1925. It then ceased to be used as a full-time military facility.
During World War II, the Vichy regime arrested and interned Léon Blum, Édouard Daladier, Paul Reynaud, Georges Mandel and Maurice Gamelin as political prisoners at the fort. After the Riom Trials, Reynaud was transferred to German custody and held in Germany. Mandel was taken to Paris, where he was executed in 1944 by the Milice in retaliation for the assassination earlier that year of Philippe Henriot, a Vichy official, by the Resistance. After the war, Philippe Pétain, the head of the Vichy government, was imprisoned in the fort from 15 August to 16 November 1945.
After the government abandoned the fort, it was bought by the local authorities in 1999. They are restoring it.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.