The Cathedral of Ratzeburg, one of the oldest brick churches of Northern Germany, is a basilica with three naves. Its arches are supported by pillars and it is built in the form of a cross with a choir quadrangle and a halfround apse. The last restoration (completed in 1966) returned the cathedral to its late Romanesque conception, so you can discover most of the unity and integrity of its original design.
The cathedral was founded in 1154, when Henry the Lion, Duke of Saxony, and Hartwich I, Archbishop of Hamburg, refounded the episcopal seat of Ratzeburg, and Evermodus became its first bishop. The cathedral was restored, and additions were made to it in the 15th century.
The Cloister, on the north side of the Cathedral, was begun shortly after the completion of the Cathedral (ca. 1220). The cloistered courtyard is open for the public.
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.