White Palace (Ctesiphon)

[1] According to the 9th-century Muslim geographer Ya'qubi, the palace was located on the east bank of the Tigris River, in a district known in Arabic sources as al-madina al-ʿatiqa ("the Old City").

However, early Muslim writers such as al-Tabari and Ya'qubi, who both drew their work from primary sources, differentiate between the two palaces.

[1][3] It was an open building, preferred for public audiences, banquets, and welcoming foreign emissaries, in contrast to the White Palace, which was well-fortified and easy to protect.

[2] In 755, the Abbasid caliph al-Mansur (r. 754–775) started the demolition of the palace in order to build his new capital, Baghdad.

It was finally demolished in 903 by the Abbasid caliph al-Muqtafi (r. 902–908), who used its remnants to finish the construction of the Taj Palace in Baghdad.