Scholars have debated whether homosexuality or merely a love of books prevented a ruler from this city from producing an heir until he bestowed a male name and clothes upon his wife Subh. In this city, the enslaved mathematician Lubna is said to have overseen a massive library. (15[1])A ruler (-5[1])of this city constructed a fortified palace on its outskirts called the “Radiant City.” (-5[1])To (-5[1])align with existing Roman streets, this city’s (*) “Great Mosque” was oriented towards the south. (10[1])This city’s (-5[1])political demise resulted in the establishment of the taifa kingdoms. (10[1]-5[2])After (-5[1])winning the Battle (10[1])of (10[1])Musarah, (10[3])Abd (10[1])al-Rahman I (-5[1])established (10[1])a namesake (10[1])independent emirate (10[1])ruled from this city. (10[1]-5[1])For 10 points, name this foremost city (10[1])of Ummayad al-Andalus, (10[3]-5[1])where a namesake (10[2])caliphate (10[1]-5[1])was later established (10[1])in 929. (10[1])■END■ (10[3]0[10])