1080
| Years: 1077 1078 1079 - 1080 - 1081 1082 1083 | |
| Decades: 1050s 1060s 1070s - 1080s - 1090s 1100s 1110s | |
| Centuries: 10th century - 11th century - 12th century | |
Events
- William I of England, in a letter, reminds the Bishop of Rome that the King of England owes him no allegiance.
- King Alfonso VI of Castile establishes Roman liturgy in Catholic church in place of Mozarabic rite.