al-Ḥurr b. Yazīd al-Riyāḥī (d. 10 Muḥarram 61/10 October 680), one of the commanders of the Kūfan forces who, on the day of ʿĀshūrāʾ, defected to the camp of al-Ḥusayn b. ʿAlī (q.v.). Al-Ḥurr belonged to the tribe of Banū Riyāḥ b. Yarbūʿ, a branch of the Banū Tamīm (see al-Kalbī, 213, 216; al-Balādhurī, 12/159). For this reason he is identified variously by the nisbas al-Riyāḥī, al-Yarbūʿī and al-Tamīmī; his name is given by al-Ṭabarī as al-Ḥurr b. Yazīd al-Yarbūʿī al-Ḥanẓali al-Riyāḥī al-Tamīmī (Ṭabarī/Howard, Yazīd b. Muʿāwiyah, passim). Al-Ḥurr’s forefathers and ancestors enjo…