The Château de Montrésor is a medieval castle with a Renaissance mansion built in the grounds. In about 1005, Fulk Nerra, count of Anjou, chose a rocky spur dominating the valley of the Indrois as the site for his captain Roger le Petit Diable ("Little Devil"), to build him a powerful fortress. Montrésor had one of the first keeps built in stone, similar to that at Loches, and two circular walls, but today only the west wall remains. In the 12th century, Montrésor fell into the hands of Henry II of England and the imposing towers at the entrance were built, as well as a part of the north curtain wall. In 1188, King Philip Augustus of France retook Montrésor from the English. André de Chauvigny, returning from the Third Crusade with Richard the Lionheart, became the new lord of Montrésor, before having to cede the castle for almost two centuries to the Palluau family. Demolished in 1203, the castle was rebuilt in 1393 for Jean IV de Bueil by Jean Binet, who put up the enclosure wall, the gatehouse and the existing outbuildings.
From the start of the 15th century, with the court spending more and more time in Touraine, Montrésor became a centre for courtesans and royal servants. In 1493, Imbert de Batarnay bought Montrésor to build an elegant residence in the feudal enclosure, of which only the main wing remains. Imbert was an influential councillor and chamberlain to four kings of France: Louis XI, Charles VIII, Louis XI and Francis I. This royal servant had a long tenure in this function, rare in this epoch, but he was skilful and cunning, and was present at all of the negotiations in his time - he was particularly responsible for arranging the marriage of Anne of Brittany to the king, sealing the joining of the Duchy of Brittany to the French kingdom. He was entrusted with preparations for war with Italy and the education of the children of Louis XII and François I.
During the 17th and 18th centuries, other leading families - such as the Bourdeilles and the Beauvilliers - lived in the castle. The French Revolution marked the beginning of its decline. Around 1845, count Jouffroy de Gonsan demolished the west wing of the Renaissance logis as well as the castle chapel. In 1849, Xavier Branicki, a rich Polish count and friend of emperor Napoleon III, arrived to give new life to Montrésor; Branicki undertook the complete restoration of the castle. He equipped the house with rich furnishings and roofs and the house was the setting for sumptuous feasts with Napoléon. Branicki's descendants still own the castle.
References:Goryōkaku (五稜郭) (literally, 'five-point fort') is a star fort in the Japanese city of Hakodate on the island of Hokkaido. The fortress was completed in 1866. It was the main fortress of the short-lived Republic of Ezo.
Goryōkaku was designed in 1855 by Takeda Ayasaburō and Jules Brunet. Their plans was based on the work of the French architect Vauban. The fortress was completed in 1866, two years before the collapse of the Tokugawa Shogunate. It is shaped like a five-pointed star. This allowed for greater numbers of gun emplacements on its walls than a traditional Japanese fortress, and reduced the number of blind spots where a cannon could not fire.
The fort was built by the Tokugawa shogunate to protect the Tsugaru Strait against a possible invasion by the Meiji government.
Goryōkaku is famous as the site of the last battle of the Boshin War.