Year 942 (CMXLII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar.
The Chavda Kingdom is overthrown in Gujarat, on the Indian subcontinent.
December 17 – William I, Duke of Normandy, is ambushed by supporters of Arnulf I, Count of Flanders, while the two are at a peace conference to settle their differences.
Hywel Dda, king of Deheubarth, annexes Gwynedd and Powys, to become ruler of most of Wales.
A Hungarian army attacks Umayyad Spain. They besiege the cities of Lerida, Cerdanya, Huesca, than they capture Yahya ibn Muhammad ibn al Tawil, the ruler of the town Barbastro.
October 30 – Pope Marinus II succeeds Pope Stephen VIII, as the 128th pope.
Pampa, Kannada poet in India
Genshin (源信), influential Tendai scholar
Empress Wang (Taizu)
February 13 – Muhammad ibn Ra'iq, amir al-umara
November 18 – Odo of Cluny, saint and second abbot of Cluny (b. c. 878)
Pope Stephen VIII
King Idwal Foel of Gwynedd
December 17 – William I of Normandy
Gaozu of Later Jin, founder of the Later Jin dynasty in China (b. 892)
Liu Yan of the Southern Han Kingdom
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