The first castle at Burgistein was built by Jordan I of Thun (later of Burgistein) in 1260. Jordan III of Burgistein fought on the losing side in the Battle of Laupen in 1339. In retaliation a Bernese army attacked and destroyed the castle in 1340. It was rebuilt in the following years.
In 1397 the Burgistein family died out and the castle was inherited by Werner Münzer. Over the following century it passed through numerous owners until 1484 when the Wattenwyl family acquired it. They owned the castle until 1714, when it passed to the Graffenried family. The 14th-century castle was rebuilt in the 15th and 16th centuries.
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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.