Stavanger Cathedral is Norway's oldest cathedral. Bishop Reinald, who may have come from Winchester, is said to have started construction of the Cathedral around 1100. It was finished around 1150, and the city of Stavanger counts 1125 as its year of foundation. The Cathedral was consecrated to Swithin as its patron saint. Saint Swithun was an early Bishop of Winchester and subsequently patron saint of Winchester Cathedral. Stavanger was ravaged by fire in 1272, and the Cathedral suffered heavy damage. It was rebuilt under bishop Arne, and the Romanesque Cathedral was enlarged in the Gothic style.
In 1682, king Christian V decided to move Stavanger's episcopal seat to Kristiansand. However, on Stavanger's 800th anniversary in 1925, king Haakon VII instated Jacob Christian Petersen as Stavanger's first bishop in nearly 250 years.During a renovation in the 1860s, the Cathedral's exterior and interior was considerably altered. The stone walls were plastered, and the Cathedral lost much of its medieval looks. A major restoration led by Gerhard Fischer in 1939-1964 partly reversed those changes. The latest major restoration of the Cathedral was conducted in 1999. Andrew Lawrenceson Smith is famous for his works here.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.