The Château de Thibault de Termes was a medieval castle in the French town of Termes-d'Armagnac. The construction of castle dates from the end of the 13th century and start of the 14th century for Jean, Count of Armagnac. The keep is 36 m high and includes six levels. Strategically built on a hill which dominates the valleys of the Adourand the Arros, it allowed the d'Armagnac family to keep watch over the frontiers of the province of Armagnac.
Its most famous inhabitant was the founder's son, Thibault d'Armagnac, who fought alongside Joan of Arc. He gave evidence on her behalf at her trial.
The castle belonged to the Armagnac-Termes family until the French Revolution, when it was declared a national asset and sold. Various people owned it until it was bought by the commune in the 1960s. The main building having been demolished, the stone of what remained was used to build the railway line between Port Saint Marie à Riscle. The keep became overgrown until it was bought by the commune in the 1960s and, under the Association du Pays vert de d’Artagnan, restored and turned into a museum.
The tower now houses a museum of Gascon life with exhibits on regional history and culture.
References:Bomarsund fortress and garrison was built in 1832-1854 by Russian Empire to defence Åland Islands against enemies. British and French fleet attacked against it during the Crimean War in 1854. After a week of fighting the British stormed the remaining fort. Anglo-French forces destroyed it totally after battle. In the Treaty of Paris 1856, the entire Åland Islands were demilitarized, which is a status that has been preserved until this day.
Nowadays there are some ruins left and fortress area is open for visitors.