Pastlasby Oleh Voronko

State · 1806 – 1918

Grand Duchy of Hesse

A state of 1806 – 1918 — 112 years in Europe. It replaced German Confederation and Landgraviate of Hesse-Darmstadt. It was replaced by People's State of Hesse. The atlas records 3 things within it — people 3. Its line of rulers holds 3 people. Its own article says it was conquered.

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

Stood
112 years
1806 – 1918
Rulers
3
the Landgrave of Hesse-Kassel
Most ground
20,000 km²
in 1806
Within it
3
recorded rows
Symbols
2
on record, with years
Map: Grand Duchy of Hesse in 1806, its borders in gold among its neighbours
Grand Duchy of Hesse in 1806, when it held the most ground the borders dataset draws for it: 20,000 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.
Grand Duchy of Hesse in 1806, at its largest

1806 · at its largest · 20,000 km²

Grand Duchy of Hesse in 1870, last mapped

1870 · last mapped · 7,800 km²

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

3000 BCE2000 BCE1000 BCE110002000German Confederation: 1815 – 1866Landgraviate of Hesse-Darmstadt: 1567 – 1806Grand Duchy of Hesse: 1806 – 1918

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

After it

  • People's State of Hesse · replaced by

How it ended, as its article says

Conquered, 1918. Read from the article's section “lead” by its grammar; the claim is only that the article says so.

During the November Revolution after World War I in 1918, the grand duchy was overthrown and replaced by the People's State of Hesse.

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

Rulers

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

Louis I, Grand Duke of Hesse · 1806 – 1830 · no death date to read the end againstFrederick William, Elector of Hesse · 1847 – 1866 · no death date to read the end againstErnest Louis, Grand Duke of Hesse and by Rhine · 1892 – 1918 · no death date to read the end against18201840186018801900
ending not on record
RulerReignLengthHow it ended · sourceTo the ruler before
Louis I, Grand Duke of Hesse1806 – 183024 yearsending not on record
Frederick William, Elector of Hesse1847 – 186619 yearsending not on record
Ernest Louis, Grand Duke of Hesse and by Rhine1892 – 191826 yearsending not on record

3 rulers, 3 with terms dated as terms, covering 1806 – 1918. Median reign 24 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.

18101820183018401850

20,000 km² in 1806, 10,600 km² in 1856; at its largest 20,000 km² in 1806. 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 of the Grand Duchy of Hesse 1806-1918
    coat of arms, undatedCoat of Arms of the Grand Duchy of Hesse 1806-1918 · CC BY-SA 4.0 · Glasshouse using elements by Sodacan, Heralder and Trondivers
  • Flagge Großherzogtum Hessen mit Wappen
    flag, 1806 – 1918Flagge Großherzogtum Hessen mit Wappen · 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.

1800 – 1899: 3 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 3 other18001900 – 1999: 0 recorded — 0 wars and battles, 0 risings, regime changes and massacres, 0 other1900

1800 – 18993 rows

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 stood112 years

    stood longer than 49% of 3,187 states with a recorded end or still standing.

  • The most ground it held20,000 km²

    held more ground at its peak than 21% 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 median24 years

    had longer reigns, at the median, than 72% 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: 4 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.

Landgraviate of Hesse-Darmstadt · Linked · 1567 – 1806Landgraviate of Hesse-DarmstadtLouis I, Grand Duke of Hesse · Coincidence · 1753 – 1830Louis I, Grand Duke of HesseHeinrich von Gagern · Coincidence · 1799 – 1880Heinrich von GagernJustus von Liebig · Coincidence · 1803 – 1873Justus von LiebigGrand Duchy of Hesse · 1806 – 1918Grand Duchy of HessePeople's State of Hesse · Linked · 1918 – 1945People's State of Hesse1600170018001900
linkedcoincidence

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

Theories that apply to its ending

Of 3 theories of why states fall, 1 has every condition present at this ending; each is applied by its own logic, condition by condition, and whether its authors named this case is a footnote.

  • Dynastic cycle and the decay of group feeling

    Ibn Khaldun 1377 · Turchin & Nefedov 2009

    Applies by its own logic: the condition it names held here, and this is the kind of outcome it predicts — adverse regime change or the state's ending.

    • the state 90 to 160 years old — ageBand 112

Open in the atlas

Wikidata Q20135 (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.