State · 430 – 950

Kingdom of Gwent

A state of 430 – 950 — 520 years in Europe. Its line of rulers holds 2 people, 1 with dated terms.

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

Stood: 520 years; 430 – 950
Rulers: 2; the king
Most ground: 1,500 km²; in 587
Symbol: 1; on record, with years

Map: Kingdom of Gwent in 587, its borders in gold among its neighbours — Kingdom of Gwent in 587, when it held the most ground the borders dataset draws for it: 1,500 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.

Where it sits in time

Five thousand years, 3000 BCE to 2026; the state in gold.

Rulers

The line of king.

died in office

Ruler	Reign	Length	How it ended · source	To the ruler before
Cadell ab Arthfael	916 – 942	26 years	died in office, manner not recordedread off the dates alone

2 rulers, 1 with terms dated as terms, covering 916 – 942. Only 26 years of the line are dated - too short for a median. 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.

1,400 km² in 555, 1,300 km² in 930; at its largest 1,500 km² in 605. 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.

coat of arms, undatedCoat of arms of Gwent · CC BY-SA 3.0 · AlexD

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 stood520 years
stood longer than 87% of 3,187 states with a recorded end or still standing.
The most ground it held1,500 km²
held more ground at its peak than 4% 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.
Rulers on record2
has more rulers on record than 34% of 1,968 states with a line of rulers.

Open in the atlas

On the timeline, 378 – 1002, with everything that stood beside it.
On the map in 587, live: scrub the year and watch its borders move.
Investigate it: what led to it, what came of it, and its succession analysed.

Wikidata Q2594661 (CC0) · borders Cliopatria, CC BY 4.0 · coast and rivers Natural Earth · symbols from Wikimedia Commons, each credited above · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.