The Mirabello Castle is located in Mirabello di Pavia in the area of the Parco Visconteo. The building today is only a wing of the original castle, which was the seat of the Captain of the Park, the authority administering the Parco Visconteo on behalf of the Visconti family.
Since the 12th century the area had been occupied by a Cistercians monastery. In 1325 the Fiamberti family of Pavia acquired goods and lands in the area and between 1325 and 1341 they built the original castle. In the sixties of the fourteenth century, Galeazzo II Visconti acquired the castle from the Fiamberti. The castle was completed by the Visconti family and incorporated in the Parco Visconteo.
References: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.