863
| Years: 859 860 861 862 - 863 - 864 865 866 867 | |
| Decades: 830s 840s 850s - 860s - 870s 880s 890s | |
| Centuries: 8th century - 9th century - 10th century | |
Events
- Constantine I succeeds as king of Scotland. (or 862)
- Pope Nicholas I excommunicates patriarch Photius I of Constantinople.
- After the death of Charles, Lothair takes part of the Jura and Louis II takes the Provence.
- Carloman revolts against his father Louis the German a second time.
- Cyril and Methodius mission in Great Moravia begins
Deaths