State · 580 – 1093

Kingdom of Morgannwg

A state of 580 – 1093 — 513 years in Europe. It was replaced by Glamorgan.

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

Stood: 513 years; 580 – 1093
Most ground: 2,900 km²; in 947
Symbols: 2; on record, with years

Map: Kingdom of Morgannwg in 947, its borders in gold among its neighbours — Kingdom of Morgannwg in 947, when it held the most ground the borders dataset draws for it: 2,900 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 Morgannwg in 540, 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 Morgannwg in 947, 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.

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.

After it

Glamorgan · replaced by

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.

1,500 km² in 580, 1,500 km² in 1055; at its largest 2,900 km² in 955. Cliopatria, CC BY 4.0.

Flags and arms, in order

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 morgannwg · CC BY-SA 3.0 · AlexD
flag, undatedGlamorgan Flag · Public domain

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 stood513 years
stood longer than 87% of 3,187 states with a recorded end or still standing.
The most ground it held2,900 km²
held more ground at its peak than 6% 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.

Open in the atlas

On the timeline, 529 – 1144, with everything that stood beside it.
On the map in 947, live: scrub the year and watch its borders move.
Investigate it: what led to it, what came of it, and its succession analysed.

Wikidata Q13131807 (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.