Copenhagen, Denmark
1400-1450
Roskilde, Denmark
c. 1170
Aalborg, Denmark
c. 1380-1400
Roskilde, Denmark
c. 1125
Aarhus, Denmark
12th century
Odense, Denmark
c. 1300
Ribe, Denmark
1110
Odense, Denmark
1096
Helsingør, Denmark
1559
Helsingør, Denmark
1430
Aarhus, Denmark
1060
Kolding, Denmark
c. 1250
Vejle, Denmark
13th century
Jelling, Denmark
c. 1100
Køge, Denmark
1250-1300
Ribe, Denmark
1228
Hjørring, Denmark
1250
Skagen, Denmark
14th century
Stege, Denmark
13th century
Gudhjem, Denmark
ca. 1160
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.