The Monastery of San Salvador or San Benito de Lérez was founded in the 10th century by Benedictine monks. The present church is Neo-Classical with an 18th-century Baroque façade, where the image of St. Benedict can be seen in a niche. Adjoining the southern wall, one wing of the 16th-century cloister is still standing. Some of the blocks in this wall show tomb engravings and Roman inscriptions, dating from the original construction.
The most interesting aspect of the interior is the Chapel of San Benito, built in the year 1700, and where we can see a beautiful image of the Saviour. It is a custom to pass below the Saint´s altar on one´s knees.
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.