Höglwörth Abbey is a former monastery of the Augustinian Canons, dedicated to St. Peter and Paul. It was founded in 1125 by Archbishop Conrad I of Salzburg. It was the only monastery saved from the secularization of Bavaria (1802 and 1803), until Rupertiwinkel became part of the Kingdom of Bavaria in 1816. The last provost Gilbert Grab sought relief from secularization from 1813, but this was not granted until 1816 by the King of Bavaria. On 30 July 1817 it was formally given independence as a privately owned monastery.
The monastery with its rococo church on a peninsula in Lake Höglwörth represents one of the finest ensembles in the eastern Upper Bavaria. The church was rebuilt from 1675. The choir was preserved from the Romanesque church. Before silting to the east the monastery was on an island, but it is now on a peninsula. Wörth is an old word for island, and it is still shown as an island on the field map from the 19th century.
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.