Zufar ibn al-Harith al-Kilabi was a Muslim commander from the Arab tribeofBanu Amir, and the leader of the Qays faction in the late 7th century. During the First Muslim Civil War he led his tribe in A'isha's army against Caliph Ali at the Battle of the Camel in 656. In 657 he fought under Mu'awiya against Ali at the Battle of Siffin. During the Second Muslim Civil War he served Caliph Yazid I against anti-Umayyad rebels in the 683 Battle of al-Harra. After Yazid died, Zufar supported Abd Allah ibn al-Zubayr's bid to wrest the caliphate from the Umayyads. At the 684 Battle of Marj Rahit, the Qays were crushed by the Umayyads and their allies. Zufar then set up headquarters in Qarqisiya and led the Qays tribes against the Kalb. After three sieges of Qarqisiya from 685 to 691, Zufar negotiated a peace with Caliph Abd al-Malik and his troops were pardoned, rewarded and integrated into the Umayyad military. The peace was sealed by the marriage of Zufar's daughter Rabab to the caliph's son Maslama.(Full article...)