Château de la Bourbansais was built in in 1583 by Jean du Breil. At this time, the château was smaller than today. It was only composed of the façade and the two towers. The first modifications was made in the seventeenth century, with the construction of the west façade, in front of the french gardens. Then, in the 18th century, the family d’Armaillé, wanted to receive their guests with fast and luxury to show their power. They added the two wings, French gardens and the ground floor was transformed in french salons for receptions. The two wings were the apartments of the guests who could stay here more than a month. The façade is said “Renaissance” because the large symmetry with the windows. The donjon and the ditches date from the Middle Ages.
Today there is a zoo in the lands of château.References:
Kristiansten Fortress was built to protect the city against attack from the east. Construction was finished in 1685. General Johan Caspar von Cicignon, who was chief inspector of kuks fortifications, was responsible for the new town plan of Trondheim after the great fire of 18 April 1681. He also made the plans for the construction of Kristiansten Fortress.
The fortress was built during the period from 1682 to 1684 and strengthened to a complete defence fortification in 1691 by building an advanced post Kristiandsands bastion in the east and in 1695 with the now vanished Møllenberg skanse by the river Nidelven. These fortifications were encircled by a continuous palisade and thereby connected to the fortified city. In 1750 the fortress was modernized with new bastions and casemates to protect against mortar artillery.