State · 1138 – 1320

Duchy of Greater Poland

A state of 1138 – 1320 — 182 years in Europe. It was replaced by Kalisz Voivodeship. The atlas records 2 things within it — people 2. Its line of rulers holds 3 people.

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

Stood: 182 years; 1138 – 1320
Rulers: 3; the Duke of Greater Poland
Most ground: 116,400 km²; in 1177
Within it: 2; recorded rows
Symbol: 1; on record, with years

Map: Duchy of Greater Poland in 1177, its borders in gold among its neighbours — Duchy of Greater Poland in 1177, when it held the most ground the borders dataset draws for it: 116,400 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.

Duchy of Greater Poland in 1177, 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.

Duchy of Greater Poland in 1272, last 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.

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

Kalisz Voivodeship · replaced by

Rulers

Read from the state’s own English article and its rulers’ articles, where Wikidata names no ruler.

killed, executed or dead in battleending not on record

Ruler	Reign	Length	How it ended · source
Mieszko III the Old	1138 – 1177	39 years	ending not on record
Władysław III Spindleshanks	1202 – 1229	27 years	ending not on record
Przemysł II	1279 – 1296	17 years	killed, the article saysread from the ruler's own article

3 rulers, 3 with terms dated as terms, covering 1138 – 1296. Median reign 27 years. 0 of 2 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.

27,300 km² in 1148, 25,700 km² in 1298; at its largest 116,400 km² in 1178. 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, undatedPOL województwo wielkopolskie COA · Public domain

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.

1200 – 12992 rows

Przemysł II · politician · 1257 – 1296
Bolesław the Pious · person · 1225 – 1279

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 stood182 years
stood longer than 60% of 3,187 states with a recorded end or still standing.
The most ground it held116,400 km²
held more ground at its peak than 48% 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 median27 years
had longer reigns, at the median, than 78% of 967 states whose dated line can carry a median.
Rulers on record3
has more rulers on record than 48% of 1,968 states with a line of rulers.

What led to it, and what came of it

The investigation's own picture: 2 causes 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.

in the articlelinked

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, 1120 – 1338, with everything that stood beside it.
On the map in 1177, live: scrub the year and watch its borders move.
Investigate it: what led to it, what came of it, and its succession analysed.

Wikidata Q1515009 (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.