Destruction of Palace of the Golden Gate (813

The Palace of the Golden Gate (Arabic: قصر باب الذهب, romanized: Qasr Bāb al-Dhahab) or Palace of the Green Dome (Arabic: قصر القبة الخضراء, romanized: Qasr al-Qubbat al-Khaḍrāʾ) was the official caliphal residence in Baghdad during the early Abbasid Caliphate.

Baghdad was founded in 762 by the second Abbasid caliph, al-Mansur (r. 754–775). The main part of the original city was the Round City, with the Palace of the Golden Gate and the adjacent Great Mosque of al-Mansur at its centre. Apart from the mosque, no other buildings were allowed to be built close to the palace, which was thus surrounded by a wide open space; only on the northwest, towards the Gate of Syria, two buildings were constructed next to the palace wall: a barracks for the caliph's horse guard, and a two-part gallery, originally intended as an audience hall for the sahib al-shurta (police chief) and the captain of the horse guard respectively, but later came to be used as a public prayer space. Around this space, the palaces of al-Mansur's younger children, quarters for the palace servants, and the offices of the various administrative departments were built.

The palace originally occupied an area of 200 square yards (170 m2), with a central building topped by a green dome, 48.36 metres (158.7 ft) high, which gave the palace its alternative name of al-Qubbat al-Khadra'. At the top of the dome was the effigy of a horseman carrying a lance, who in later times was credited with magical properties: he would allegedly turn his lance towards the direction where enemies were approaching from. Underneath the dome was a square audience chamber 30 feet (9.1 m), with a vaulted ceiling just as high; and above that, in the interior of the dome, was another chamber of similar dimensions. In front of the audience chamber was an alcove, called the aywan, which was surmounted by an arch 45 feet (14 m) high and 30 feet (9.1 m) wide.

The palace and mosque appear to have been completed in 763, one year after construction began, allowing al-Mansur to take up residence in the city. While the Palace of the Golden Gate remained the official residence of the caliphs, al-Mansur and his successors also spent much time in the nearby Khuld Palace constructed soon afterwards. Caliph Harun al-Rashid (r. 786–809) is said to have particularly preferred Khuld over the older palace, but his son al-Amin (r. 809–813) restored it as his residence, added a new wing to it, as well as a large square (maydan). As the main stronghold of al-Amin and his partisans, it suffered extensive damage from bombardment by catapult during the Siege of Baghdad (812–813). The palace then ceased to be used as a royal residence, and became neglected.

The palace remained intact, although part of the structure was torn down to facilitate the expansion of the nearby Great Mosque under al-Mu'tadid (r. 892–902). The landmark Green Dome remained standing until the night of 9 March 941 (7/8 Jumada II 329 AH), when heavy rainfalls, and possibly a thunderbolt strike, led to its collapse. The walls of the dome survived until the Sack of Baghdad by the Mongols in 1258.

Text from the Wikipedia article “Palace of the Golden Gate”, available under CC BY-SA 4.0.

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