The Palace of the Grand Master of the Knights of Rhodes, also known as the Kastello, is one of the few examples of Gothic architecture in Greece. The site was previously a citadel of the Knights Hospitaller that functioned as a palace, headquarters, and fortress.
According to recent study, in the exact spot in which the palace exists today, there was the foundations of the ancient temple of the Sun-god Helios and probably that was the spot where Colossus of Rhodes stood in the Antiquity. The palace was originally built in the late 7th century as a Byzantine citadel. After the Knights Hospitaller occupied Rhodes and some other Greek islands (such as Kalymnos and Kastellorizo) in 1309, they converted the fortress into their administrative centre and the palace of their Grand Master. In the first quarter of the 14th century, they repaired the palace and made a number of major modifications. The palace was damaged in the earthquake of 1481, and it was repaired soon afterwards.
After the 1522 capture of the island by the Ottoman Empire, the palace was used as a command centre and fortress.
During the Italian rule of Rhodes, the Italian architect Vittorio Mesturino restored the damaged parts of the palace between 1937 and 1940. It became a holiday residence for the King of Italy, Victor Emmanuel III, and later for Fascist dictator Benito Mussolini, whose name can still be seen on a large plaque near the entrance.
On 10 February 1947, the Treaty of Peace with Italy, one of the Paris Peace Treaties, determined that the recently established Italian Republic would transfer the Dodecanese Islands to Greece. In 1948, Rhodes and the rest of the Dodecanese were transferred as previously agreed. The palace was then converted to a museum, and is today visited by the millions of tourists that visit Rhodes.
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.