Northumbria’s downfall 736AD-854AD
In the late 8th Century, Northumbria was plagued by weak leadership and collapsed into a state of anarchy caused perhaps in part by dynastic rivalries between the royal houses of Deira and Bernicia. From 737AD to 806AD, Northumbria had ten kings: three were murdered, five were expelled and two retired to become monks. This instability may well have encouraged the first Viking raiders to attack the Northumbrian coast from 793AD.

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737AD – Northumbrian king becomes a monk
King Ceolwulf of Northumbria becomes a monk on Lindisfarne. He is succeeded by Eadbert.
April 24, 741AD – York Minster hit by fire
York Minster is damaged by fire. It will be rebuilt in 770.
746AD – Rome writes to Jarrow
Bishop Boniface of Rome has written to Northumbria for editions of the works of Bede – the most popular titles in Europe.
750AD – Bishop plotted against the king
Cynewulf, Bishop of Lindisfarne, is imprisoned for plotting against King Eadbert.
758AD – Another king becomes a monk
Eadbert of Northumbria has retired to become a monk at York. He is succeeded by his son Oswulf.
Aug 5, 759AD – King murdered
Oswulf, King of Northumbria, is assassinated at Great Whittington near Corbridge and succeeded by a Deiran called Athelwald Moll of Catterick who may be responsible for the assassination.

761AD – Chieftain killed at Coniscliffe
Oswin, a Bernician noble is murdered at Coniscliffe (King’s Cliff) by Athelwald Moll.
762AD – Consecration at Elvet
Peothwine is consecrated Bishop of Whithorn at Aelfet Ee (Elvet). It is the first mention of Christian activity in the Durham City area.
Oct 30, 765AD – Moll forced out
Following a meeting at Finchale, King Athelwald Moll is forced from power and succeeded by Alhred.
774AD – King driven out
King Alhred is driven out of Northumbria by Athelred, son of Athelwald Moll.
779AD – Coniscliffe murders
Athelred has been ousted by a Bernician called Alfwold. A number of royal nobles are murdered at Coniscliffe during the coup.
781AD – Consecration at Sockburn
Higbald has been consecrated Bishop of Lindisfarne at Sockburn.
782AD – Scholar leaves for Europe
Alcuin of York, who has built up a huge library at his school in the city, has left to study at the court of Charlemagne in France.
788AD – Boy king flees
King Alfwold is murdered by his uncle Sicga at Chesters near Hadrian’s Wall and is buried at Hexham. He is succeeded by his nephew Osred II who flees to the Isle of Man. Athelred begins a second period as King.

789AD – Aycliffe meetings
A Synod has been held at Aycliffe regarding religious matters and discipline. It follows a similar meeting at Aycliffe in 782.
792AD – Athelred kills rivals
King Athelred drowns a rival prince in Windermere and beheads Osred II at Maryport on the Cumberland coast.
Sept 26, 792AD – Royal marriage at Catterick
Athelred of Northumbria marries the daughter of King Offa of Mercia at Catterick.

June 8, 793AD – Vikings raid Lindisfarne
In an unprecedented attack which shocks Europe, a raiding party of Vikings from Norway attack Lindisfarne. Monks flee in fear and many are slaughtered. Bishop Higbald seeks refuge on the mainland. A Chronicler records: “On the 8th June, the harrying of the heathen miserably destroyed God’s church by rapine and slaughter.”
793AD – Scholar says raids are punishment from God
In a letter from Charlemagne’s court in France, Alcuin, the former head of York School, blames the recent Viking attack on a fall in moral standards in Northumbria. He sees the raid as punishment
796AD – Viking raids continue
In 794 Vikings attacked the famous monastery at Jarrow but the Northumbrians were prepared for this attack and manage to surprise and utterly destroy the Vikings. Further Viking raids on Lindisfarne and Jarrow continue throughout the year.

April 18-May 26, 796AD – Short reign for murderous king
King Athelred of Northumbria is murdered at Corbridge and succeeded by Osbald who plotted the murder. Osbald is then forced out by Eardwulf.
800AD – Vikings raid Hartlepool and Tynemouth
Vikings raid the monasteries at Whitby, Hartlepool and Tynemouth.

801AD – Monastery at Gainford
A monastery is established at Gainford where a chieftain called Ida is said to be buried.
804AD – Alcuin dies
Alcuin of York has died at Charlemagne’s court in France. He was one of the most highly respected men of learning in Europe.
808AD – King Eardwulf restored
In 806, King Eardwulf was driven out and succeeded by Alfwold II but Eardwulf is restored following Alfwold’s death.
810AD – Synods at Finchale
A synod has been held at Finchale on the River Wear to discuss Northumbrian church matters and discipline. Similar meetings took place at Finchale in 792 and 798AD.
811AD – Eardwulf ousted again
Eardwulf is deposed as King of Northumbria. He is succeeded by King Eanred.
821AD – Bishoprics merge
The Bishopric of Hexham has been absorbed by Lindisfarne. The new bishopric extends from Tweed to Tees.
829AD – Powers meet at Northumbria’s ‘door’
Egbert, King of Wessex and Mercia, and Eanred of Northumbria meet at Dore. Their aim is to ensure peace. Eanred accepts Wessex supremacy and recognises Egbert as ‘over king’ of England. Dore near Sheffield is situated on the border near a Pennine pass or ‘doorway’ between Northumbria and the south.

830AD – Cuthbert monks flee Lindisfarne
The monks of Lindisfarne leave the island with St Cuthbert’s body to escape further raids. They settle inland at Norham on Tweed where a church is built for the saint’s shrine.
840AD – King Eanred dies
Eanred, King of Northumbria, dies. He is succeeded by his son Athelred II.
841AD – Dublin Vikings
Vikings from Norway establish Dublin as their chief coastal stronghold in the British Isles.
844AD – King killed by Vikings
King Athelred II is temporarily expelled and hastily replaced by King Raedwulf who is killed fighting the Vikings. The location of Raedwulf’s death is recorded as a place called Alutehelia which has been identified with both Elvet and Bishop Auckland in Durham. Athelred II is restored as king.
848AD – King Osbert
Athelred II is killed and succeeded by King Osbert.
854AD – Lindisfarne Bishop
Eardwulf is appointed as the last Bishop of Lindisfarne.
866AD – Danes invade
Osbert, the King of Northumbria, is overthrown by his people, meanwhile, the Danes mount a major invasion of England.