KnowraYa'qub ibn al-Layth al-SaffarLinked fromLinked fromThe 4 pages that link to Ya'qub ibn al-Layth al-Saffar, each with the reason it gives.All 4Broader topic 2Related 1Compared with 1Ismail SamaniCompared with: His defeat by Ismail marked a decisive shift in control of Khurasan.