Gottorf Castle is the ancestral home of the Holstein-Gottorp branch of the House of Oldenburg. It was first settled as an estate in 1161 as the residence of Bishop Occo of Schleswig when his former residence was destroyed. The Danish Duke of Schleswig acquired it through a purchase in 1268, and in 1340 it was transferred to the Count of Holstein at Rendsburg of the House of Schauenburg. The manor later, through maternal inheritance, became the possession of Christian I of Denmark, the first Danish monarch from the House of Oldenburg, in 1459.
Both the island and the structure were extended through the years, and particularly during the 16th century. Frederick I, younger son of Christian I, made it his primary residence. In 1544 the duchies of Schleswig and Holstein were divided in three parts; Frederick's third son Adolf received one of these parts and made his residence at Gottorp. This state became known as the Duchy of Schleswig-Holstein-Gottorp.
The estate became a European cultural centre in the reign of Frederick III, Duke of Holstein-Gottorp, (1597–1659). The castle was built by the famous Swedish architect Nicodemus Tessin the Younger (1697-1703).
After the ducal lineage of Gottorp were forced to move out in 1702, the palace, now occupied by the Danish, fell into disuse and disrepair in 1713 under the reign of Frederick IV of Denmark. Pieces of furniture, art and other interior were gradually moved out of the palace, and the structures were used both as Danish and Prussian barracks in the 19th century.
During World War II, the estate was used as a displaced persons camp.
Since 1947, the palace has been renovated and restored through a series of efforts. The restoration was considered complete in 1996. The palace is now owned by a foundation of the State of Schleswig-Holstein and houses the State Art and Cultural History Museum and the State Archeological Museum.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.