Jalal ad-Din Mingburnu
Shihab al-Din Muhammad al-Nasawi (; died c. 1250) was a Persian secretary and biographer of the Khwarazmshah Jalal ad-Din Mingburnu (). Born in Nasa in Khorasan, he witnessed first-hand the Mongol invasion of Khorasan and Jalal ad-Din's subsequent flight and military adventures of which he left an account written in Arabic c. 1241. He had beforehand written another work, the "Nafthat al-masdur", an account of his life prior to 1231, written in Persian c. 1234/5.