 Nonetheless, a branch of the Tayy under Qahtaba ibn Shabib were among the leaders of the Abbasid Revolution which toppled the Umayyads in the mid-8th century.The Tayy fared well under the Abbasids, producing military officials and renowned poets, such as Buhturi and Abu Tammam.By the mid-9th century, Abbasid authority had eroded and the Tayy were left dominant in the southern Syrian Desert and Jabal Tayy.