Idris Imad al-Din

Idris Imad al-Din ibn al-Hasan al-Qurashi (Arabic: إدريس عماد الدين بن الحسن القرشي, romanized: ʾIdrīs ʿImād al-Dīn ibn al-Ḥasan al-Qurashī; 1392 – 10 June 1468) was the 19th Da'i al-Mutlaq of Tayyibi Isma'ilis from 1428 to 1468. A major religious and political leader in 15th-century Yemen, as well as a notable theologian, Idris was also an important medieval Isma'ili historian whose work is fundamental for the history of the Fatimid Caliphate and the Isma'ili communities in Yemen.