Launch app →

Europe · The successor kingdoms

Kingdom of Essex

drawn on the map AD 534–665

The Kingdom of the East Saxons (Old English Ēast Seaxna rīce) covered Essex, Middlesex, much of Hertfordshire and, at times, west Kent; London lay within its orbit. It was traditionally founded in the 6th century (a legendary date of 527 under Æscwine is given).

See it on the map → Wikipedia ↗
Shown on the map
AD 534–665
Peak area
4k km²
Region
Europe

Names and extent

The Kingdom of the East Saxons (Old English Ēast Seaxna rīce) covered Essex, Middlesex, much of Hertfordshire and, at times, west Kent; London lay within its orbit. It was traditionally founded in the 6th century (a legendary date of 527 under Æscwine is given).

Rulers and Christianity

The best-documented early king is Sæberht (Saebert, d. 616), nephew of Æthelberht of Kent, who ruled under Kentish overlordship. In 604 Augustine consecrated Mellitus as bishop to the East Saxons, and Æthelberht built the church of St Paul the Apostle in London as the episcopal see — the origin of St Paul's. On Sæberht's death (616), his sons led a pagan reaction and expelled Mellitus, and Christianity had to be reintroduced later (notably by St Cedd in the 650s).

Overlordship and end

Essex was repeatedly subordinate — to Kent, then Mercia. By the mid-8th century much of it, including London, was effectively Mercian. The last king, Sigered, ruled from c. 798; he was reduced from king to dux by his Mercian overlords in 812, and in 825, after Ecgberht of Wessex defeated Beornwulf of Mercia at Ellandun, Essex passed to Wessex. (A shadowy Sigeric appears as a "king" but Mercian minister in the 830s, a minor complication in identifying the true "last king.") Essex's principal legacy is London and the see of St Paul's, and its history exemplifies how the smaller "Heptarchy" kingdoms were absorbed by the greater powers.

Common questions

What was the Kingdom of Essex?
The Kingdom of the East Saxons (Old English Ēast Seaxna rīce) covered Essex, Middlesex, much of Hertfordshire and, at times, west Kent; London lay within its orbit. It was traditionally founded in the 6th century (a legendary date of 527 under Æscwine is given).
When is the Kingdom of Essex shown on the map?
The border data draws the Kingdom of Essex AD 534–665. The source samples borders at fixed dates, so a span can begin late or run on past the end.
How large was the Kingdom of Essex?
At its greatest extent drawn on this map, the Kingdom of Essex covered about 4,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.
Who ruled the Kingdom of Essex?
The best-documented early king is Sæberht (Saebert, d. 616), nephew of Æthelberht of Kent, who ruled under Kentish overlordship. In 604 Augustine consecrated Mellitus as bishop to the East Saxons, and Æthelberht built the church of St Paul the Apostle in London as the episcopal see — the origin of St Paul's.

Sources

This compendium cites its sources once for the whole document rather than per territory. Its bibliography names the English Wikipedia articles for each kingdom as the primary basis, with Encyclopædia Britannica, the World History Encyclopedia, national heritage bodies (Historic Environment Wales and Scotland, the Clwyd-Powys Archaeological Trust), museum sources and the Dictionary of Irish Biography, read against the Anglo-Saxon Chronicle, Bede and the Irish annals with their own biases. The article this entry is anchored on:

This entry was last updated .

This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made

Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.

Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).

Around the same time

See the Kingdom of Essex in its world

Open the atlas at AD 600 and every neighbour, rival and successor is on screen with it — then drag the slider and watch what happens next.

Open the map at AD 600 →