St. Nicholas' Cathedral is a significant, well preserved example of northern German Late Brick Gothic; the church features three aisles, two transepts and a single-aisled ambulatory. Particularly impressive is the church's northern tiered gable. The church features 22 stained glass features considered to be treasures of international significance, a feature of the cathedral elevating the building to a heritage site of Europe-wide importance.
The cathedral was founded in 1188 by Margrave Otto II. The construction of present building was begun in 1423. In World War II the cathedral suffered damages during an air raid on April 8, 1945. The vault of the south transept and parts of the cloister were destroyed. The medieval windows had been removed before and survived.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).