State · 519 – 927

Kingdom of Wessex

A state of 519 – 927 — 408 years in Europe. It replaced Kingdom of Sussex and followed Kingdom of Mercia and Gewisse. It was replaced by Kingdom of England. The atlas records 15 things within it — wars and battles 7 · treaties 1 · people 7. Its line of rulers holds 4 people. Its own article says it was partitioned by avoid war.

For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the state.

Stood: 408 years; 519 – 927
Rulers: 4; the King of Wessex
Most ground: 96,500 km²; in 830
Within it: 15; recorded rows
Symbol: 1; on record, with years

Map: Kingdom of Wessex in 830, its borders in gold among its neighbours — Kingdom of Wessex in 830, when it held the most ground the borders dataset draws for it: 96,500 km². Its neighbours wear their tints, as on the atlas's own map. Borders from Cliopatria (CC BY 4.0), coast and rivers from Natural Earth, cities from Reba, Reitsma & Seto 2016 (CC BY 4.0), each city under the name it bore that year.

Kingdom of Wessex in 534, first mapped — The rise and the fall in one frame: the same ground at the years the borders dataset first maps it, maps it largest, and last maps it.

Kingdom of Wessex in 830, at its largest — The rise and the fall in one frame: the same ground at the years the borders dataset first maps it, maps it largest, and last maps it.

Where it sits in time

Five thousand years, 3000 BCE to 2026; the state in gold, what it replaced or followed and what replaced or followed it in grey.

Before and after

The states the record files it as replacing or following, and those that replaced or followed it - Wikidata's own statements, each read from this state's side.

Before it

Kingdom of Mercia · follows · 527 – 918
Kingdom of Sussex · replaces · 477 – 825
Gewisse · follows

After it

Kingdom of England · replaced by · 927 – 1707

How it ended, as its article says

Partitioned by avoid war. Read from the article's section “lead” by its grammar; the claim is only that the article says so.

When Æthelwulf's son, Æthelbald, usurped the throne, the kingdom was divided to avoid war. Æthelwulf was succeeded in turn by his four sons, the youngest being Alfred the Great.

One sentence of the English Wikipedia article, CC BY-SA 4.0.

Rulers

The line of King of Wessex.

died in officeending not on record

Ruler	Reign	Length	How it ended · source	To the ruler before
Seaxburh of Wessex	672 – 673	1 year	ending not on record
Alfred the Great	871 – 899	28 years	died in office, manner not recordedread off the dates alone
Edward the Elder	899 – 924	25 years	died in office, manner not recordedread off the dates alone	child
Ælfweard of Wessex	924 – 924	under a year	died in office, manner not recordedread off the dates alone	child

4 rulers, 4 with terms dated as terms, covering 672 – 924. Median reign 13 years. 0 of 3 handovers irregular - a killing, a deposition, a rival claimant, a rising or a coup beside it. A blank in the last column means no kin on record, which is coverage, never “unrelated”.

Ground held, by year

km² inside its borders as the borders dataset draws them, measured on an equal-area grid; a step series, held between the years the dataset maps.

9,500 km² in 544, 96,000 km² in 927; at its largest 96,000 km² in 927. Cliopatria, CC BY 4.0.

Flag or arms

Each symbol with the years its own statement gives; the timeline flies the one of the year on screen.

flag, undatedFlagOfWessex · CC BY-SA 3.0 · Hogweard

What happened within it, by century

Every row the atlas hosts under this state, by the century it began in: wars and battles in red, risings, regime changes and massacres beside them, everything else in grey. A tall bar is a century the record is full for, which is partly a fact about Wikipedia.

500 – 5991 row · 1 wars and battles

Battle of Deorham · battle · 577

600 – 6991 row

Seaxburh of Wessex · ruler · 601 – 674

700 – 7991 row

Lullus · ruler · 710 – 786

800 – 89911 rows · 6 wars and battles

Alfred the Great · ruler · 849 – 899
Edward the Elder · ruler · 874 – 924
Æthelred I of Wessex · person · 847 – 871
Æthelflæd · person · 870 – 918
Treaty of Wedmore · treaty · 878
Battle of Reading · battle · 871
Battle of Ellendun · battle · 825
Battle of Ashdown · battle · 871

and 3 more in the atlas.

900 – 9991 row

Ælfweard of Wessex · ruler · 900 – 924

Among all states

Each measure against the states that carry it, never against all of them: a bar is the share of those states below this one.

How long it stood408 years
stood longer than 81% of 3,187 states with a recorded end or still standing.
The most ground it held96,500 km²
held more ground at its peak than 45% of 1,465 states with a border in Cliopatria.
Wars recorded per centurynone
had more wars on record per century than 44% of 3,187 states, counting the wars the atlas hosts under each.
How long a reign lasted, at the median25 years
had longer reigns, at the median, than 75% of 967 states whose dated line can carry a median.
Rulers on record4
has more rulers on record than 58% of 1,968 states with a line of rulers.

What led to it, and what came of it

The investigation's own picture: 1 cause the record names and 1 result, the strongest six of each at their own years, joined to the state by the kind of claim - a recorded statement solid, the article's sentence dashed, a theory dash-dot.

linked

Open the investigation: every row with its evidence, the conditions at the time, the theories condition by condition, and the succession analysed.

Open in the atlas

On the timeline, 478 – 968, with everything that stood beside it.
On the map in 830, live: scrub the year and watch its borders move.
Investigate it: what led to it, what came of it, and its succession analysed.

Wikidata Q105313 (CC0) · borders Cliopatria, CC BY 4.0 · coast and rivers Natural Earth · symbols from Wikimedia Commons, each credited above · one sentence of the English Wikipedia article, CC BY-SA 4.0 · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.