Ibn Bayhas al-Kilabi

Muhammad ibn Salih ibn Bayhas al-Kilabi, better known as Ibn Bayhas (Arabic: أبن بيهس), was the Abbasid governor of Damascus in September 813–824/825 and a prominent chief of the Qays tribes in the environs of Damascus against their Yamani rivals. Under his leadership, a succession of Umayyad claimants to the caliphate, Abu al-Umaytir al-Sufyani, Maslama ibn Ya'qub al-Marwani and Sa'id ibn Khalid al-Uthmani, were defeated, marking an end to serious challenges of Abbasid authority in Syria by remnants of the Umayyad dynasty, which had been toppled by the Abbasids in 750. Although a loyalist of Caliph al-Ma'mun, he was viewed as a rival by al-Ma'mun's viceroy of Syria, Abd Allah ibn Tahir ibn al-Husayn, who deposed him around 824/825. Two years later, he was brought to Iraq, where he eventually died.