The castle of Berrueco is located in the small town that belongs to Torredelcampo. It is the most important castle in all Jaén district. On top of San Antón hill, the ruins and remains of Iberian, Roman and Visigoth settlements have been found. This is an area that has been conquered and occupied by different peoples over the years. The main settlement was Roman and took up the lower part of the San Antón hillside.
The castle was built by the Muslims during the 12th century. During the 13th century it was largely transformed by the Christians. The interior was restructured and battlements and machicolations were added for defensive purposes.
In 1243, after its conquest by Ferdinand III, Christians again remodeled the castle to its current appearance.
The most important battles in Castle of Berrueco took place during the second half of the 15th century. At that time the castle was conquered by don Pedro Girón, leader of the rebels against Henry IV. Pedro Girón wanted to make a pact to marry Queen Isabella the Catholic. Don Pedro de Girón died before he could reach such an agreement and the castle was conquered again by the soldiers of constable Iranzo. The castle belonged again to Jaén district.
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.