940 deaths

'''Abu'l-Abbas Muhammad ibn Ja'far al-Muqtadir (; 1 January 909 – 23 December 940), usually simply known by his regnal name al-Radi bi'llah''' (), was the twentieth Caliph of the Abbasid Caliphate, reigning from 934 to his death. He died on 23 December 940 at the age of 31. His reign marked the end of the caliph's political power and the rise of military strongmen, who competed for the title of .

Melkite Patriarch of Alexander (877-940) (r. 933-940)

samurai who led one of the largest insurgent forces in the Heian period against the central government in Kyoto

Moorish writer

Iraqi Muslim theologian and religious leader (867–941)

883-943

890-940

Arab Christian philosopher (c.870–940)

Italian prince

Arab philologist and grammarian

Islamic scholar, founder of the Chisti order of Sufism.

10th-century Italian magnate

Rajyapala () was the eighth emperor of the Pala dynasty. He succeeded his father Narayanapala. He reigned for 32 years. The Bharat Kala Bhaban inscription is dated in his 2nd regnal year. He was succeeded by his son Gopala III.

Samanid Vizier (died 940)

Chinese general and politician

Iranian Daylamite military leader (died 940)