Palace of the Porphyrogenitus

The Palace of the Porphyrogenitus in Istanbul, Turkey is a Byzantine palace building whose construction falls between earlier medieval phases and a Palaiologan rebuilding, conventionally dated to the tenth century in some traditions or to the late thirteenth century in later construction phases. As the main surviving fragment of the larger Blaherne palace complex, it is linked to imperial life in Constantinople: a member of the ruling Palaiologos family was born there, the complex served as an imperial residence at times, and its position on the city’s walls made it strategically and symbolically prominent across centuries.

Work on the structure occurred in more than one building phase. Elements of the plan and masonry point to an early fabric that may go back to the tenth century, while a substantial phase belongs to the Palaiologan period in the late thirteenth century. During the Latin occupation that followed the sack of Constantinople in 1204 much of the Blaherne ensemble was burned and destroyed; the Latin emperor Baldwin favored the Boukoleon Palace rather than the Blaherne group. After the Byzantine reconquest in 1261, Emperor Michael VIII Palaiologos directed repairs at the Blaherne complex and moved the imperial residence back there.

By the mid-fourteenth century travelers described the Blaherne quarter as partly ruined, and the building now called the Tekfur Palace appears in reports as a principal imperial lodging. Maps from the fifteenth century mark only that palace as the imperial residence. When the Ottoman forces captured the city in 1453, the structure sustained heavy damage because it stood beside the outer defensive wall; it was not repurposed as an Ottoman palace even though the Turkish name Tekfur Sarayı continued to be applied to it.

After the conquest members of the Jewish community settled in the area around the palace. In later Ottoman times the building and its courts were adapted to a range of uses recorded in different periods, among them a menagerie for the sultan in the sixteenth century and, in other reports, functions described as a brothel and a Jewish almshouse. In 1719 Grand Vizier Damat İbrahim Paşa established a tile workshop in the palace courtyard and brought craftsmen from İznik to work there. A chief imperial architect later had workshops, a kiln and a mill built for the enterprise in 1721, and tiles produced at the site were used in the III Ahmed Fountain, the Kasım Paşa Mosque and the Hekimoğlu Ali Paşa Mosque; production continued for about fifteen years and ended in 1735.

During the nineteenth century the palace’s northern section served as a glass factory. The nearby Şişehane Mescidi was endowed in 1805 and its name is thought to derive from the glassworks. A large fire in 1864 that consumed adjacent Jewish houses caused major damage to parts of the palace, including marble architectural elements and a southeast corner balcony, and debris from the glass factory raised the level of the interior court. By the early twentieth century the building stood as a ruin of four walls.

State care began in the mid-twentieth century. In 1955 the structure was placed under the administrative authority of the Hagia Sophia museum, rubble was cleared from the courtyard, and repairs carried out between 1955 and 1970 kept the fabric standing. A surface survey in 1993 searched for tile kilns, and excavations ran from 1995 to 2001 under the Turkish Ministry of Culture and the Turkish and Islamic Arts Museum. The palace underwent restorations between 2005 and 2014 and was opened as the Ottoman Tile Museum, exhibiting tiles, glass and pottery recovered during the excavations and presenting interpretive displays including hologram animations. By 2023 the restored building operated as a museum, with access that includes one of the towers equipped as a viewing platform.