792 CE
King Æthelred I of Northumbria marries Princess Ælfflæd, daughter of King Offa of Mercia, at Catterick. Unrest in Northumbria tempts the exiled king Osred II back to his kingdom from the Isle of Man. His supporters desert him, and Osred II is killed by Æthelred's men at Aynburg. He is buried at Tynemouth Priory. Battle of Marcellae: Constantine VI leads a Byzantine expeditionary force into northern Thrace. At the border castle of Marcellae, near the modern town of Karnobat (Bulgaria), the Bulgarians under Kardam defeat the Byzantines. Spring – Emperor Constantine VI suppresses a rebellion, and restores his mother Irene to her former position as co-empress of the Byzantine Empire. The rival factions in Constantinople continue their intrigues against Constantine.
Conflict & Security
- Battle of Marcellae: Constantine VI leads a Byzantine expeditionary force into northern Thrace. At the border castle of Marcellae, near the modern town of Karnobat (Bulgaria), the Bulgarians under Kardam defeat the Byzantines.source
- Spring – Emperor Constantine VI suppresses a rebellion, and restores his mother Irene to her former position as co-empress of the Byzantine Empire. The rival factions in Constantinople continue their intrigues against Constantine.source
- The Westphalians rise up against the Saxons, in response to a forcible recruitment for wars against the Avars. However, Pepin, sub-king of Northern Italy and son of King Charlemagne, continues the war, and wins considerable booty from the Avars.source
Exploration & Expansion
- Offa arranges coastal defences to fend off Viking attacks. He forms an alliance with Essex, Kent and Sussex, in an attempt to unify England (approximate date).source
Religion & Belief
- Charlemagne's son Pepin the Hunchback attempts to rebel against him with the aid of some Frankish nobles. The plot is discovered and Pepin is banished to a monastery at Prüm.source
Crime & Justice
- September – King Æthelred I of Northumbria marries Princess Ælfflæd, daughter of King Offa of Mercia, at Catterick. Unrest in Northumbria tempts the exiled king Osred II back to his kingdom from the Isle of Man. His supporters desert him, and Osred II is killed by Æthelred's men at Aynburg. He is buried at Tynemouth Priory.source