The St Nicholas parish church was founded in the 1220s, with later additions including late 13th-century chancel and transepts and a 19th-century tower. The church is Grade I listed. Perhaps the most remarkable features of the church are the ornate rood screen, misericords and stalls which were transferred to the church from Chirbury Priory in Shropshire after the Dissolution of the Monasteries in the 16th century.
The south transept shows evidence of Montgomery's close association with the Herbert family. The centrepiece is the Elizabethan era tomb or church monument to Richard Herbert (died 1596) of Montgomery Castle, father of poet and Anglican divine George Herbert. This association is recalled in a memorial poem to a well-known local man J. D. K. Lloyd, who wrote this poem after the style of George Herbert.
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.