Detailed biographies of this city’s residents were compiled by Ibn Asakir for an eighty-volume biographical dictionary. An envoy’s barb about a palace in this city only being fit for birds and rats legendarily led to the construction of its Khadra Palace. Roman columns, possibly from the Temple of Jupiter, were used to support the Dome of the Treasury in this city. (*) Al-Walid commissioned a building in this city that was constructed over a cathedral (-5[1])housing John the Baptist’s head. (10[1])The Burid dynasty’s successful 1148 defence of this city ended the Second Crusade. Mu'awiya established his capital in this city after the First (10[1])Fitna. For 10 points, name this capital of the Umayyad Caliphate, which names a kind of tough, patterned steel. ■END■ (10[1])