The Failed Invasion of West Francia and…
860 CE
The Failed Invasion of West Francia and the Treaty of Coblenz (860)
In 860, Louis the German launches another attempt to seize the throne of West Francia from his younger brother, Charles the Bald. However, the invasion fails due to a combination of political resistance, treachery, and strategic miscalculations, forcing Louis to abandon his claim and negotiate a peace settlement at Coblenz on June 7, 860.
The Invasion and the Resistance of Charles the Bald
- Encouraged by Frankish nobles disillusioned with Charles' rule, Louis the German once again marches into West Francia, hoping to claim the throne with local support.
- However, Charles’ most loyal supporters—particularly the Aquitanian bishops—refuse to recognize Louis as king.
- This resistance ensures that Louis fails to gain legitimacy among the clergy, who wield significant political influence in the Carolingian Empire.
- The Welf family, Charles’ maternal relatives, also remain steadfast in their loyalty, preventing the defection of key Frankish nobles to Louis.
Louis’s Campaign Falters
- Discontent and desertion spread within Louis’s army, further weakening his position.
- Some of his allies betray him, possibly swayed by Charles’ political maneuvering.
- Lacking both clerical legitimacy and noble support, Louis abandons his conquest of West Francia.
The Treaty of Coblenz (June 7, 860)
- With his campaign collapsing, Louis the German meets Charles the Bald at Coblenz to negotiate peace.
- The treaty stipulates:
- Louis renounces his claim to West Francia, effectively ending his immediate ambitions for the throne.
- In return, Charles agrees to grant Alsace to Louis, strengthening his position in East Francia.
Aftermath and Significance
- The treaty temporarily restores peace between the two brothers, but it does not resolve the underlying rivalry between East and West Francia.
- Charles remains secure on the West Frankish throne, but his kingdom remains weak and vulnerable, particularly to further Viking incursions and noble unrest.
- Louis consolidates his rule over East Francia, ensuring that the region remains independent from West Francia.
The failed invasion of 860 underscores the shifting balance of power within the Carolingian world, where dynastic disputes, noble factions, and the influence of the clergy play decisive roles in shaping the fate of the empire.