The Battle of Karbala on October 10, 680 (Muharram 10, ah 61) involved:
- Al-Ḥusayn ibn ʿAlī: Grandson of Prophet Muhammad and son of ʿAlī, who led a small party against the Umayyad army.
- Yazīd I: The Umayyad caliph whose army defeated and massacred Ḥusayn and his followers.
- ʿUmar ibn Saʿd: Commander of the large army sent by ʿUbayd Allāh, which confronted Ḥusayn at Karbala.