Encylopaedia Britannica: "Saʿdī, also spelled Saadi, byname of Musharrif al-Dīn ibn Muṣlih al-Dīn, (born c. 1213, Shīrāz, Iran—died Dec. 9, 1291, Shīrāz), Persian poet, one of the greatest figures in classical Persian literature."
Encyclopedia Iranica: "SAʿDI, Abu Moḥammad Mošarref-al-Din Moṣleḥ b. ʿAbd-Allāh b. Mošarref Širāzi, Persian poet and prose writer (b. Shiraz, ca. 1210; d. Shiraz, d. 1291 or 1292), widely recognized as one of the greatest masters of the classical literary tradition."