Hasan al-Utrush

Abū Muḥammad al-Ḥasan ibn ʿAlī ibn al-Ḥasan ibn ʿAlī ibn ʿUmar al-Ashraf ibn ʿAlī Zayn al-ʿĀbidīn ibn al-Ḥusayn, better known as al-Ḥasan al-Uṭrūsh, was an Alid missionary of the Zaydi Shia sect who re-established Zaydi rule over the province of Tabaristan in northern Iran in 914, after fourteen years of Samanid rule. He ruled Tabaristan until his death under the regnal name of al-Nāṣir liʾl-Ḥaqq, and became known as al-Nāṣir al-Kabīr to distinguish him from his descendants who bore the same surname. His grandfather Al-Ḥasan is the grandson of ʿAlī Zayn al-ʿĀbidīn'son ʿUmar al-Ashraf. He is still known and recognized as an imam among the Zaydis of Yemen.