Loneliest Leader (Persian: تنهاترین سردار, romanized: Tanhaatarin Sardaar) is a series directed by Mahdi Fakhimzade. This series narrates a short part of Hasan Ibn Ali's life, Hasan-Muawiya treaty and the conditions of the Islamic community and Shia and the events after his killing. In short, this series has also been produced in the form of a film.