Yazid ibn Khalid al-Qasri
Due to his father's imprisonment , torture , and death at the hands of al-Walid II's governor of Iraq , Yusuf ibn Umar al-Thaqafi , during the Third Fitna he sided with Yazid III , apparently serving as his "sahib al-shurta" . 
<triplet> Third Fitna <subj> al-Walid II <obj> participant <subj> Yazid III <obj> participant