List of 633 Major News Events in History, Most Important Historical Events in 633
| Date | Event |
|---|---|
| October 12, 633 | Battle of Hatfield Chase: King Edwin of Northumbria is defeated and killed by an alliance under Penda of Mercia and Cadwallon of Gwynedd. |
| December 5, 633 | Fourth Council of Toledo opens, presided over by Isidore of Seville. |