State · 1138 – 1742

Duchy of Silesia

A state of 1138 – 1742 — 604 years in Europe. The atlas records 3 things within it — wars and battles 3. 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: 604 years; 1138 – 1742
Rulers: 3; the Duke of Silesia
Most ground: 121,300 km²; in 1139
Within it: 3; recorded rows
Symbols: 3; on record, with years

Map: Duchy of Silesia in 1139, its borders in gold among its neighbours — Duchy of Silesia in 1139, when it held the most ground the borders dataset draws for it: 121,300 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 Silesia in 1139, 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 Silesia in 1279, 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.

Rulers

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

deposed, abdicated, exiled or removedending not on record

Ruler	Reign	Length	How it ended · source	To the ruler before
Władysław II the Exile	1138 – 1146	8 years	ending not on record
Henry the Bearded	1201 – 1238	37 years	ending not on record	grandchild
Henry II the Pious	1238 – 1241	3 years	deposed, the article saysread from the ruler's own article	child

3 rulers, 3 with terms dated as terms, covering 1138 – 1241. Median reign 8 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.

34,700 km² in 1188, 19,000 km² in 1288; at its largest 119,500 km² in 1238. 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 the Duchy of Silesia · CC BY-SA 3.0 · Samhanin
coat of arms, undatedHerzog von Schlesien-Breslau-Wappen Hdb · Public domain
coat of arms, undatedHenryk I Probus herb · CC BY-SA 4.0 · GierekTV

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 – 12993 rows · 3 wars and battles

Battle of Legnica · battle · 1241
First Mongol invasion of Poland · war · 1240 – 1241
Battle of Chmielnik · battle · 1241

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 stood604 years
stood longer than 90% of 3,187 states with a recorded end or still standing.
The most ground it held121,300 km²
held more ground at its peak than 49% of 1,465 states with a border in Cliopatria.
Wars recorded per century0.2
had more wars on record per century than 89% of 3,187 states, counting the wars the atlas hosts under each.
How long a reign lasted, at the median8 years
had longer reigns, at the median, than 29% 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.

Open in the atlas

On the timeline, 1078 – 1802, with everything that stood beside it.
On the map in 1139, live: scrub the year and watch its borders move.
Investigate it: what led to it, what came of it, and its succession analysed.

Wikidata Q568638 (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.