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High & Late Middle Ages1429 CE – 1449 CEPeak: 10,256 km² (1444 CE)

Duchy of Luxembourg: Map & History

The Duchy of Luxembourg was a state of the Holy Roman Empire, the ancestral homeland of the noble House of Luxembourg.

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1429 CEDrag timeline:1444 CE1449 CE
1429 CE
1435 CE
1440 CE
1445 CE
1449 CE
Capital: LuxembourgCapital at 49.61°N, 6.13°EPeak Extent: 10,256 km²Vector Attribution: Cliopatria (CC BY 4.0)Wikidata: Q2719360 ↗
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Wikipedia Encyclopedic Compendium

Historiographical synthesis & structured realm registry

Wikipedia: Duchy of Luxembourg
Duchy of Luxembourg historical cartography
1353–1797 state of the Holy Roman Empire

The Duchy of Luxembourg was a state of the Holy Roman Empire, the ancestral homeland of the noble House of Luxembourg. The House of Luxembourg became one of the most important political forces in the 14th century, competing against the Houses of Habsburg and Wittelsbach for supremacy in the Holy Roman Empire. They would be the heirs to the Přemyslid dynasty in the Kingdom of Bohemia, succeeding to the Kingdom of Hungary and contributing four Holy Roman Emperors until their own line of male heirs came to an end and the House of Habsburg received the territories that the two Houses had originally agreed upon in the Treaty of Brünn in 1364.

Capital / Seat
Luxembourg
Common Languages
Luxembourgish, German, French
State Governance
Feudal Duchy
Historical Religion
Roman Catholicism
Peak Territory
10,256 km²
Key Dynasts / Leaders
Wenceslaus I (first), Elizabeth of Görlitz
Preceded By
County of Luxembourg, Vianden
Succeeded By
French First Republic, Burgundian Netherlands
Content & infobox metadata adapted from Wikipedia (Duchy of Luxembourg)

Modern Countries Once Part of Duchy of Luxembourg

At its mapped extent, Duchy of Luxembourg covered territory in 1 present-day country. The period shown is when the mapped borders include that country, and the note says how much of it.

Largest Present-Day Cities in Its Territory

Each opens on the live map inside Duchy of Luxembourg's borders of that time.

Derived by testing mapped cities against this polity's dated territorial polygons, so the list is indicative and follows the borders in the source dataset.

Duchy of Luxembourg in Depth

Early history

The first known reference to the territory was made by Julius Caesar in his Commentarii de Bello Gallico. The historical region of Luxembourg belonged to the Roman province of Belgica Prima. After the invasion of the Germanic tribes from the East, Luxembourg became part of the Frankish Empire. By the 843 Treaty of Verdun, it became part of the Lotharingian province of Middle Francia. According to the Treaty of Ribemont in 880, it had finally fallen to East Francia.

Modern historians explain the etymology of the word Luxembourg as coming from the word Letze, meaning fortification, which might have referred to either the remains of a Roman watchtower or a primitive refuge of the Early Middle Ages.

Sections adapted from Wikipedia: Duchy of Luxembourg (CC BY-SA 4.0).

Duchy of Luxembourg Timeline

Key historical inflections from foundation to peak territorial expansion

1 Epochs
Territorial Apex1444 CE

Expansion to peak recorded area of 10,256 km² in 1444 CE.

Duchy of Luxembourg: Frequently Asked Questions

When did Duchy of Luxembourg exist?

Duchy of Luxembourg is dated to 1429 CE – 1449 CE, in the High & Late Middle Ages era.

What was the capital of Duchy of Luxembourg?

The capital of Duchy of Luxembourg was Luxembourg.

How large was Duchy of Luxembourg at its peak?

At its peak in 1444 AD Duchy of Luxembourg covered about 10,256 km².