Château de Ballon is mentioned from the beginning of the 11th century. It is said to have been built by Robert I of Bellême to serve as a stronghold against the family of the Counts of Maine. The fortress quickly became the target of the Normans who sought to conquer the southern region.
From the 12th century onwards, Ballon passed into the hands of the Chaources family, who held the castle for two hundred years. The lordship was then under Anglo-Norman influence. In order to end the Plantagenet hegemony, Philip Augustus traveled to Maine. He captured Ballon twice in 1189 and 1199. The Ballon fortress was then burned and dismantled. Philip Augustus had it rebuilt and placed Hugues de Beauçais in charge.
During the Hundred Years' War, the fortress had to endure several sieges and was ravaged an conquered several times. The reconstruction of the keep and the part of Ballon began in 1469.
Today Château de Ballon is a triangle form castle with corner towers and moat. It has remarkable gardens built in the 1960s.
The Citadelle of Quebec is an active military installation and official residence of both the Canadian monarch and the Governor General of Canada. It is located atop Cap Diamant, adjoining the Plains of Abraham in Quebec City. The citadel is the oldest military building in Canada, and forms part of the fortifications of Quebec City, which is one of only two cities in North America still surrounded by fortifications, the other being Campeche, Mexico.
The first fortifications in Quebec were built by the Governor General of New France Louis de Buade, and completed just in time for the Battle of Quebec in 1690.
After the British conquest in the second half of the 18th century, the problem of Quebec City's defences grew more acute.