Complex sentence: Al-Afdal was exiled to Salkhad, while al-Aziz was proclaimed supreme overlord of the Ayyubid empire; however, most of the effective power was in the hands of Al-Adil, who had installed himself in Damascus.
Split into simpler sentences: Al-Afdal was exiled to Salkhad, while al-Aziz was proclaimed supreme overlord of the Ayyubid empire. However, most of the effective power was in the hands of Al-Adil, who installed himself in Damascus.