History
771
General
Population: 224 Million*
- Astronomy: Halley's Comet
- Deaths: Carloman son of Pepin the Short and brother of Charlemagne
Europe
- Holy Roman Empire: Death of Carloman son of Pepin the Short and brother of Charlemagne - Charlemagne becomes sole ruler of Franks
Charlemagne drives brother's widow off to Lombardy
Charlemagne declares war with Aquitaine