Abbey Sainte-Marie du Rivet may be founded in the late 8th century. There are some remains of the 9th century fortifications and the abbey church was built in the 13th century. The community is affiliated to the Cistercian order in 1189: at this date, the monastery already bears the name of Sainte-Marie.
The abbey was ravaged during the French Wars of Religion and in 1702 there was only one monk left. In 1938 the abbey came back to life, with a community of nuns. Today, 14 nuns live in the Rivet Abbey. They are Trappistines, that is to say they belong to the Cistercian order of Strict Observance, which is an order stemming from the Cistercians of the Common Observance, themselves from the Benedictines.
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.