Château de Langoiran was built in the 13th century by the Escoussans family, one of the most famous families of Gascony. The donjon (fortified central tower) is one of the largest in France. It overlooks the Garonne Valley and offers a good view for visitors.
The castle of Langoiran was owned successively by the families of Escoussans, Albret (from 1345 to 1378), and Montferrand (from 1378 to 1590). Bertrand III de Montferrand was Soudan de la Trau. He married Isabelle de Preissac, daughter of Arnaud de Preissac, Soudan de La Trau, (member of the Order of the Garter) and Marguerite of Stratton (daughter of John of Stratton).
After being ruined by multiple unsuccessful wars, the owners were forced to sell their land and the castle to a gentry family from Bordeaux: the Arnoulds. The castle of Langoiran and its seignory were mentioned as early as the 11th century. The older parts of the remaining castle date from the 13th century and the Renaissance.
The seignory of Langoiran was one of the most famous and powerful of the Duchy of Aquitaine. For centuries, it had been involved in quarrels between the kings of France and England, both hoping to obtain its accession. When the Duchy of Aquitaine belonged to the English kings and not to the Kingdom, the successors of Henry II Plantagenet were called 'Kings of England and Aquitaine'.
The Lords of Langoiran always supported the King-Duke, other than Bérard d'Albret, who had to fight at the end of his life on behalf of the King of France.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.