The latter married the former's daughter, while Zufar's eldest son Hudhayl became a commander in Maslama's service.[2] The sons of Zufar were supporters of the staunchly anti-Yaman Caliph Marwan II (r. 744–750), who appointed one of them, Kawthar, as governor of Mar'ash on the Byzantine–Arab frontier.[20] According to historian David S. Powers, the sons of Zufar "inherited the respect accorded to him. They too were held in high esteem by the caliphs."[21] Zufar's grandsons Majza'a ibn Kawthar and Wathiq ibn Hudhayl were among Marwan II's top aides, but following Marwan II's defeat at the Battle of Zab in 750, they submitted to the Abbasid Caliphate.[22] However, later that year, Majza'a led a Qaysi revolt against the Abbasids and was killed.[22]