county · Germany and Central Europe

Landgraviate of Hesse-Darmstadt

1567 CE – 1806 CE · capital Darmstadt

The youngest of the Hessian landgraviates, ruled from Darmstadt, which grew into the Grand Duchy of Hesse.

Origins

The 1567 division of the Landgraviate of Hesse gave George I, youngest son of Philip the Magnanimous, the Upper County of Katzenelnbogen, about an eighth of the land, with Darmstadt as capital. Shares of Hesse-Rheinfels in 1583 and of Hesse-Marburg in 1604 enlarged it.

Rule and society

The landgraves remained Lutheran and loyal to the emperor, unlike Calvinist Kassel. Louis V founded the University of Giessen in 1607, and in 1622 a cadet line was established as the Landgraviate of Hesse-Homburg. The landgraves inherited the County of Hanau-Lichtenberg in 1736, and Landgravine Caroline made the Darmstadt court a meeting place for writers, including Goethe and Herder.

Decline and legacy

Allied with Napoleon, Landgrave Louis X joined the Confederation of the Rhine in 1806 and became Grand Duke Louis I of the Grand Duchy of Hesse, which lasted until 1918.

Lineage

Prince-Bishopric of Worms 1156 CE – 1803 CEDuchy of Westphalia 1180 CE – 1803 CEFree Imperial City of Friedberg 1211 CE – 1802 CELandgraviate of Hesse 1264 CE – 1567 CEFree Imperial City of Wimpfen 1300 CE – 1803 CECounty of Hanau-Lichtenberg 1480 CE – 1736 CELandgraviate of Hesse-DarmstadtGrand Duchy of Hesse 1806 CE – 1918 CE

Connections (2)

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Cite this page
APA
The Epoch Institute. (2026). Landgraviate of Hesse-Darmstadt. In The Epoch Institute States Register. https://the-epoch-institute.org/state/landgraviate-of-hesse-darmstadt
MLA
“Landgraviate of Hesse-Darmstadt.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/landgraviate-of-hesse-darmstadt. Accessed .
Chicago
The Epoch Institute. “Landgraviate of Hesse-Darmstadt.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/landgraviate-of-hesse-darmstadt.
Harvard
The Epoch Institute (2026) ‘Landgraviate of Hesse-Darmstadt’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/landgraviate-of-hesse-darmstadt (Accessed: ).

Last reviewed October 2026Random state ↻