The Treaty of Verdun (843): The Division That Shaped Europe

The treaty that divided an empire and created the map of modern Europe.

Introduction: The End of a United Empire

When Charlemagne, the great Frankish emperor, died in 814, his vast empire stretched from the North Sea to Italy, and from Spain to central Europe. But this unified empire would not last long after his death. The Treaty of Verdun (843) divided Charlemagne’s kingdom among his three grandsons, creating the political and geographical foundations of modern France and Germany.

This treaty did not just divide land; it divided a civilization and set Europe on a path that would shape its history for over a thousand years.

Historical Context: Charlemagne’s Empire and Its Decline

The Carolingian Empire at Its Height

Under Charlemagne (768-814), the Frankish kingdom became the largest and most powerful in Western Europe:

• Territory: Covered modern France, Germany, Belgium, Netherlands, Switzerland, Austria, and parts of Italy and Spain
• Capital: Aachen (Aix-la-Chapelle)
• Administration: Centralized with counts governing regions
• Culture: Carolingian Renaissance - revival of learning and art
• Religion: Christianization of pagan regions

Charlemagne was crowned Holy Roman Emperor by Pope Leo III on Christmas Day, 800, symbolizing the union of Christian Europe under his rule.

The Death of Charlemagne (814)

Charlemagne’s death in 814 marked the beginning of the end for his united empire:

• Succeeded by Louis the Pious (814-840), his only surviving legitimate son
• Louis maintained unity at first but faced growing problems

The Reign of Louis the Pious (814-840)

Louis the Pious, though a devout Christian, was a less effective ruler than his father:

• Lacked Charlemagne’s strength: More interested in religion than politics
• Faced rebellions: His nephews (sons of his brother Pepin of Italy) rebelled against him
• Family conflicts: His sons fought for power

817: Louis divided the empire among his sons:

• Lothair I: Italy and the title of Emperor
• Pippin I: Aquitaine
• Louis the German: Bavaria

823: Birth of Charles the Bald (youngest son), complicating succession.

The Civil Wars (840-843)

After Louis the Pious died in 840:

• Lothair I (eldest son) claimed all power
• Louis the German and Charles the Bald resisted
• Three years of civil war followed

June 25, 841: Battle of Fontenoy-en-Puisaye

• Louis the German and Charles the Bald defeated Lothair I
• Lothair retreated to Aachen

The Treaty of Verdun: Dividing an Empire

The Negotiations

After the civil war, the three brothers agreed to negotiate a division of the empire:

• Location: Verdun (in modern France)
• Date: August 10, 843
• Parties: Lothair I, Louis the German, Charles the Bald

The Division

The Carolingian Empire was divided into three kingdoms:

1. West Francia (Charles the Bald)

• Territory: Western part of the empire
• Modern countries: France, Belgium, Netherlands, Luxembourg
• Capital: Initially no fixed capital
• Language: Romance languages (early French) developed
• Future: Became the Kingdom of France

2. Middle Francia (Lothair I)

• Territory: Central strip from the North Sea to Italy
• Modern countries: Germany (western part), Switzerland, Belgium, Netherlands (parts), Italy (northern)
• Capital: Aachen
• Language: Mixed (Romance and Germanic)
• Future: Fractured into smaller states, became Lorraine, Burgundy, Provence
• Title: Lothair kept the title of Emperor

3. East Francia (Louis the German)

• Territory: Eastern part of the empire
• Modern countries: Germany (eastern part), Austria, Switzerland (eastern), Czech Republic, Slovakia, Hungary (western)
• Capital: Regensburg
• Language: Germanic languages (early German) developed
• Future: Became the Kingdom of Germany

The Map of the Division

WEST FRANCIA (Charles the Bald)
   |------------------------------|
   |   Paris, Orleans, Tours      |
   |   Modern France             |
   |------------------------------|

MIDDLE FRANCIA (Lothair I)
   |------------------------------|
   |   Aachen, Metz, Lyon        |
   |   Italy, Switzerland        |
   |------------------------------|

EAST FRANCIA (Louis the German)
   |------------------------------|
   |   Regensburg, Frankfurt     |
   |   Modern Germany            |
   |------------------------------|

The Consequences: A New Europe

Short-term Impact

1. Immediate Stability:

   • Ended the civil wars (for a time)
   • Each brother ruled his kingdom independently

2. Continued Conflicts:

   • Disputes over borders continued
   • Invasions: Vikings, Magyars, and Muslims took advantage of the division
   • Further divisions: The kingdoms were subdivided among sons and relatives

Long-term Impact

1. The Birth of France and Germany:

   • West Francia → Kingdom of France
   • East Francia → Kingdom of Germany
   • Middle Francia → Disappeared, absorbed by neighbors

2. Linguistic Division:

   • West Francia: Romance languages (French) developed
   • East Francia: Germanic languages (German) developed
   • Middle Francia: Mixed languages (Italian, French dialects)

3. Cultural Divergence:

   • Different identities emerged in each kingdom
   • Separate political traditions developed
   • Religious differences (though all were Christian)

4. Weakened Central Authority:

   • No strong central power to defend against invasions
   • Feudalism emerged: Local lords gained power
   • Decentralization of the empire

The Legacy of the Treaty of Verdun

The Foundation of Modern Europe

The Treaty of Verdun created the basic geographical outline of modern Europe:

• France: Descended from West Francia
• Germany: Descended from East Francia
• Italy: Part of Middle Francia

The Myth of the “Eternal Empire”

Despite the division:

• The idea of a united Christian Europe persisted
• Later rulers (like Otto the Great and Charlemagne’s successors) tried to recreate the empire
• The Holy Roman Empire (962-1806) claimed to be the successor of Charlemagne’s empire

The Fragmentation of Middle Francia

Middle Francia, the central kingdom, did not survive:

• 855: Divided among Lothair’s sons after his death
• 888: Collapsed completely
• Absorbed by West Francia and East Francia
• Result: The east-west division became permanent

The Viking Invasions

The weakened Frankish kingdoms were vulnerable to invasions:

• 840s-880s: Viking raids increased
• 885-886: Siege of Paris by Vikings
• 911: Treaty of Saint-Clair-sur-Epte - Vikings settled in Normandy

The division made it harder to defend against external threats.

Why Was the Treaty of Verdun So Important?

Political Importance

1. Ended the Carolingian Civil Wars:

   • Temporary peace among the brothers
   • Prevented further bloodshed

2. Established the Principle of Division:

   • Inheritance by division rather than primogeniture
   • Precedent for future divisions

3. Created New Kingdoms:

   • France and Germany emerged as distinct entities
   • Set the stage for modern nation-states

Cultural Importance

1. Linguistic Division:

   • French developed in the west
   • German developed in the east
   • Italian and other Romance languages in the middle

2. Cultural Divergence:

   • Different art, architecture, and literature
   • Separate legal and political traditions

3. Religious Impact:

   • Church organization adapted to the division
   • Monasteries and bishoprics aligned with political boundaries

Historical Importance

1. Shaped European Geography:

   • France-Germany border roughly follows the Verdun division
   • Influenced later borders in Europe

2. Weakened the Carolingian Dynasty:

   • Never reunited under one ruler
   • Power declined over time

3. Led to Feudalism:

   • Central authority weakened
   • Local lords gained power
   • Feudal system emerged

Key Figures

Chronology

Sources and Further Reading

Primary Sources

• Einhard, Vita Karoli Magni (Life of Charlemagne) - Written during Charlemagne’s reign
• Nithard, Histories - Contemporary account of the civil wars
• Annals of St. Bertin - Chronicle of the period

Modern Sources

• Pierre Riché, The Carolingians: A Family Who Forged Europe (1983)
• Rosamond McKitterick, The Frankish Kingdoms Under the Carolingians (1983)
• Matthew Innes, Introduction to the Early Middle Ages (2007)
• Timothy Reuter, Germany in the Early Middle Ages, 800-1056 (1991)

Online Resources

• Wikipedia: Treaty of Verdun
• Wikipedia: Carolingian Empire
• Livius.org: Treaty of Verdun
• Encyclopedia Britannica: Treaty of Verdun

“The Treaty of Verdun did not just divide an empire; it divided a continent and created the geographical foundation of modern Europe.” — Historical Analysis