844
| Years: 840 841 842 843 – 844 – 845 846 847 848 | |
| Decades: 810s 820s 830s – 840s – 850s 860s 870s | |
| Centuries: 8th century – 9th century – 10th century | |
Events
- Succession of Pope Sergius II (844 – 847).
- Rhodri Mawr ('the Great') becomes king of Gwynedd.
- June 15: Louis II is crowned emperor.
- Dorestad is raided by Vikings.
Births
Deaths
- January 25 – Pope Gregory IV
- Merfyn Frych, king of Gwynedd
Categories: 844