Tzistarakis Mosque was built in 1759, by the Ottoman governor of Athens, Mustapha Agha Tzistarakis. According to tradition, Tzistarakis used one of the pillars of the Temple of Olympian Zeus to make lime for the building, although it is more likely that he used one of the columns of the nearby Hadrian's Library. This act led to his dismissal as the Turks considered it a sacrilege which would cause vengeful spirits to be loosened upon the city, a superstition that some Athenians believed to have been confirmed when there was an outbreak of the plague later in the year.
During the Greek War of Independence, the building was used as an assembly hall for the local town elders. After Greek independence, it was used in various ways: thus it was the site of a ball in honour of King Otto of Greece in March 1834, and was also employed as a barracks, a prison and a storehouse.
In 1915, it was partly rebuilt under the supervision of architect Anastasios Orlandos, and was used to house the Museum of Greek Handwork from 1918 until 1973. In 1966, it was provisionally refurbished to provide a place of prayer during the stay of the deposed King of Saudi Arabia, Saud, in the city.
In 1973, the main functions of the Museum of Greek Folk Art moved but the V. Kyriazopoulos pottery collection of ceramics remains in the mosque to this day.
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.