The Landgraviate of Hesse-Darmstadt () was a

State State most commonly refers to: * State (polity), a centralized political organization that regulates law and society within a territory **Sovereign state, a sovereign polity in international law, commonly referred to as a country **Nation state, a ...

of the

Holy Roman Empire The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages, and lasted for a millennium ...

, ruled by a younger branch of the

House of Hesse The House of Hesse is a European dynasty, directly descended from the House of Reginar, House of Brabant. They ruled the region of Hesse, one branch as prince-electors until 1866, and another branch as grand dukes until 1918.Burke's Peerage, Bur ...

. It was formed in 1567 following the division of the

Landgraviate of Hesse The Landgraviate of Hesse () was a principality of the Holy Roman Empire. It existed as a single entity from 1264 to 1567, when it was divided among the sons of Philip I, Landgrave of Hesse. History In the early Middle Ages, the territory of He ...

among the four sons of

Landgrave Landgrave (, , , ; , ', ', ', ', ') was a rank of nobility used in the Holy Roman Empire, and its former territories. The German titles of ', ' ("margrave"), and ' ("count palatine") are of roughly equal rank, subordinate to ' ("duke"), and su ...

Philip I Philip(p) I may refer to: * Philip I of Macedon (7th century BC) * Philip I Philadelphus (between 124 and 109 BC–83 or 75 BC) * Philip the Arab (c. 204–249), Roman Emperor * Philip I of France (1052–1108) * Philip I (archbishop of Cologne) ( ...

. The residence of the landgraves was in

Darmstadt Darmstadt () is a city in the States of Germany, state of Hesse in Germany, located in the southern part of the Frankfurt Rhine Main Area, Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the ...

, hence the name. As a result of the

Napoleonic Wars {{Infobox military conflict , conflict = Napoleonic Wars , partof = the French Revolutionary and Napoleonic Wars , image = Napoleonic Wars (revision).jpg , caption = Left to right, top to bottom:Battl ...

, the landgraviate was elevated to the

Grand Duchy of Hesse The Grand Duchy of Hesse and by Rhine () was a grand duchy in western Germany that existed from 1806 to 1918. The grand duchy originally formed from the Landgraviate of Hesse-Darmstadt in 1806 as the Grand Duchy of Hesse (). It assumed the name ...

following the Empire's dissolution in 1806.

Geography

Like many petty German states, the landgraviate comprised a number of disconnected pockets of land (exclaves). These included the southern Starkenburg territory with the Darmstadt residence and the northern province of

Upper Hesse The term Upper Hesse () originally referred to the southern possessions of the Landgraviate of Hesse, which were initially geographically separated from the more northerly Lower Hesse by the . Later, it became the name of one of the three provinc ...

with

Alsfeld Alsfeld () is a town in the center of Hesse, in Germany. Located about north of Frankfurt, Alsfeld is part of the densely populated Frankfurt Rhine-Main, Frankfurt Rhine-Main Metropolitan Region, with nearby Lauterbach, Hesse, Lauterbach (about ...

Giessen Giessen, spelled in German (), is a town in the Germany, German States of Germany, state () of Hesse, capital of both the Giessen (district), district of Giessen and the Giessen (region), administrative region of Giessen. The population is appro ...

, Grünberg, the northwestern ''

hinterland Hinterland is a German word meaning the 'land behind' a city, a port, or similar. Its use in English was first documented by the geographer George Chisholm in his ''Handbook of Commercial Geography'' (1888). Originally the term was associated wi ...

'' estates around

Gladenbach Gladenbach [] is a town in Hesse, Germany, in the west of Marburg-Biedenkopf district. Geography Location The town of Gladenbach lies on the eastern edge of the Westerwald in the Hessian Highland (''Bergland''). This part of the Lahn-Dill Highlan ...

Biedenkopf Biedenkopf () is a spa town in western Hesse, Germany with a population of 13,491 (2020). Geography Location The town of Biedenkopf lies in the west of Marburg-Biedenkopf district. Ringed by mountains reaching up to above sea level – the ...

and Battenberg as well as the exclave of Vöhl in Lower Hesse.

History

The Landgraviate of Hesse-Darmstadt came into existence in 1567, when George, youngest of the four sons of Landgrave Philip I "the Magnanimous", received the Hessian lands in the former upper

County of Katzenelnbogen The County of Katzenelnbogen was an Imperial immediacy, immediate States of the Holy Roman Empire, state of the Holy Roman Empire. It existed between 1095 and 1479, when it was inherited by the Landgraves of Landgraviate of Hesse, Hesse. The es ...

. His eldest brother

William IV William IV (William Henry; 21 August 1765 – 20 June 1837) was King of the United Kingdom of Great Britain and Ireland and King of Hanover from 26 June 1830 until his death in 1837. The third son of George III, William succeeded hi ...

received the

Landgraviate of Hesse-Kassel The Landgraviate of Hesse-Kassel (), spelled Hesse-Cassel during its entire existence, also known as the Hessian Palatinate (), was a state of the Holy Roman Empire. The state was created in 1567 when the Landgraviate of Hesse was divided upon t ...

, while the second son Louis IV obtained Hesse-Marburg, and the third Philipp II became Landgrave of

Hesse-Rheinfels Hesse-Rheinfels was created as a cadet line of Landgraviate of Hesse, Hesse for Philip II, Landgrave of Hesse-Rheinfels (1541–1583), landgrave from 1567 until 1583, and as a cadet line of Landgraviate of Hesse-Kassel, Hesse-Kassel for Ernest, Lan ...

Hessian War

The Hesse-Rheinfels line became extinct on Philip's death in 1583. When, in 1604, the childless Landgrave Louis IV of Hesse-Marburg died at Marburg Castle, a succession dispute to his lands, along with the sectarian differences between

Calvinist Reformed Christianity, also called Calvinism, is a major branch of Protestantism that began during the 16th-century Protestant Reformation. In the modern day, it is largely represented by the Continental Reformed Protestantism, Continenta ...

Hesse-Kassel and

Lutheran Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched ...

Hesse-Darmstadt, led to a bitter, decades-long rivalry. Because the

University of Marburg The Philipps University of Marburg () is a public research university located in Marburg, Germany. It was founded in 1527 by Philip I, Landgrave of Hesse, which makes it one of Germany's oldest universities and the oldest still operating Prote ...

had become Calvinist under the rule of Landgrave

Maurice of Hesse-Kassel Maurice of Hesse-Kassel (; 25 May 1572 – 15 March 1632), also called Maurice the Learned or Moritz, was the Landgrave of Hesse-Kassel (or Hesse-Cassel) in the Holy Roman Empire from 1592 to 1627. Life Maurice was born in Kassel as the son of ...

, his cousin Louis V of Hesse-Darmstadt founded the Lutheran

University of Giessen University of Giessen, official name Justus Liebig University Giessen (), is a large public research university in Giessen, Hesse, Germany. It is one of the oldest institutions of higher education in the German-speaking world. It is named afte ...

in 1607. The inheritance conflict was continued in the broader context of the

Thirty Years' War The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in History of Europe, European history. An estimated 4.5 to 8 million soldiers and civilians died from battle, famine ...

, in which Hesse-Kassel sided with the Protestant estates and Hesse-Darmstadt sided with the

Habsburg The House of Habsburg (; ), also known as the House of Austria, was one of the most powerful dynasties in the history of Europe and Western civilization. They were best known for their inbreeding and for ruling vast realms throughout Europe d ...

emperor. The Hesse-Homburg and Hesse-Rotenburg estates seceded from the opponents in 1622 and 1627. Though Hesse-Darmstadt and Hesse-Kassel reached an agreement in 1627, the quarrels rekindled, resulting ''inter alia'' in the Siege of Dorsten and culminating in a series of open battles from 1645, when the Kassel Landgravine Amalie Elisabeth besieged Marburg. The conflict was finally settled on the eve of the 1648

Peace of Westphalia The Peace of Westphalia (, ) is the collective name for two peace treaties signed in October 1648 in the Westphalian cities of Osnabrück and Münster. They ended the Thirty Years' War (1618–1648) and brought peace to the Holy Roman Empire ...

, more than eighty years after the division of the estates. Large parts of the disputed

territory, including Marburg, fell to the elder Kassel line, while Hesse-Darmstadt retained

and

18th–19th centuries

In 1736, the Landgraves of Hesse-Darmstadt inherited the estates of the extinct Counts of

Hanau-Lichtenberg The County of Hanau-Lichtenberg was a territory in the Holy Roman Empire. It emerged between 1456 and 1480 from a part of the County of Hanau and one half of the Barony of Lichtenberg. Following the extinction of the counts of Hanau-Lichtenberg in ...

, again contested by their Kassel cousins. Hesse-Darmstadt gained a great deal of territory by the secularizations and mediatizations authorized by the ''

Reichsdeputationshauptschluss The ' (formally the ', or "Principal Conclusion of the Extraordinary Imperial Delegation"), sometimes referred to in English as the Final Recess or the Imperial Recess of 1803, was a resolution passed by the ' (Imperial Diet) of the Holy Roman Em ...

'' of 1803. Most notable was the acquisition of the

Duchy of Westphalia The Duchy of Westphalia () was a historic territory in the Holy Roman Empire, which existed from 1102 to 1803. It was located in the greater region of Westphalia, originally one of the three main regions in the German stem duchy of Saxony and ...

, formerly owned by the Prince-Archbishop of Cologne, as well as territories from the Prince-Archbishop of Mainz and the Prince-Bishop of Worms. In 1806, upon the dissolution of the

and the dispossession of his cousin, Elector William I of Hesse-Kassel, Landgrave Louis X joined the Napoleonic

Confederation of the Rhine The Confederated States of the Rhine, simply known as the Confederation of the Rhine or Rhine Confederation, was a confederation of German client states established at the behest of Napoleon some months after he defeated Austrian Empire, Austria ...

and took the title of Grand Duke of Hesse.

Gallery

File:Flag of Hesse-Darmstadt Regiment during the Seven Years War (1756-1763).svg, Military regiment banner used during the

Seven Years' War The Seven Years' War, 1756 to 1763, was a Great Power conflict fought primarily in Europe, with significant subsidiary campaigns in North America and South Asia. The protagonists were Kingdom of Great Britain, Great Britain and Kingdom of Prus ...

File:Arms of the house of Hesse-Darmstadt (1736-1803).svg, Coat of arms (1736–1804)

External links