The Abbey of Saint-Evroul is a former Benedictine abbey, today in ruins. Its name refers to its founder, Ebrulf (Evroul), who founded a hermitage in the forest of Ouche around 560. The abbey was rebuilt around 1000. Robert de Grantmesnil served as abbot of Saint-Evroul, which he helped restore in 1050. He had become a monk at Saint-Evroul before becoming its abbot. Orderic Vitalis entered the abbey as a young boy and later wrote a history of the abbey. Saint-Evroul was famed for its musical programme and eleven monks brought its musical traditions to the abbey of Sant'Eufemia (now part ot town of Lamezia Terme) in Calabria. The abbey was rebuilt again between 1231 and 1284. In 1628 it was closed and demolished finally in the early 1800s.
References:The Royal Palace was built in the first half of the 19th century as the Norwegian residence of King Charles III, who also reigned as king of Sweden and otherwise resided there, and is the official residence of the present Norwegian monarch. The crown prince resides at Skaugum in Asker west of Oslo. The palace has 173 rooms.
Until the completion of the Royal Palace, Norwegian royalty resided in Paleet, the magnificent town house in Christiania that the wealthy merchant Bernt Anker bequeathed to the State in 1805 to be used as a royal residence. During the last years of the union with Denmark it was used by the viceroys of Norway, and in 1814 by the first king of independent Norway, Christian Frederick.