Louis and Conrad’s Relationship with Manuel (Edexcel A-Level History): Revision Notes
Louis and Conrad's Relationship with Manuel
Introduction
In 1147, unlike the First Crusade in 1095, Byzantine Emperor Manuel I did not invite crusaders to help fight the Muslim threat. This absence of an invitation made the relationship between the crusading leaders (Conrad III of Germany and Louis VII of France) and Manuel I absolutely critical to the success or failure of the Second Crusade. The quality of this relationship would determine essential aspects of the crusade, from military support to basic survival.
The lack of a formal Byzantine invitation in 1147 fundamentally changed the power dynamic between the crusaders and the Byzantine Empire. Unlike the First Crusade, where Emperor Alexius I had actively sought Western military assistance, the Second Crusade proceeded without such support, making diplomatic relations far more precarious.
Why a good relationship with Manuel I was crucial
The Byzantine Emperor held significant power over the crusaders' fate in several key areas:
Military support
During the First Crusade, Emperor Alexius I had provided Byzantine general Taticius to act as both guide and military support. Without such assistance, the First Crusaders would not have penetrated far into Asia Minor. The Second Crusaders needed similar military backing to succeed.
Taticius's role in the First Crusade demonstrated how valuable genuine Byzantine military support could be. He provided not only military guidance but also crucial knowledge of the terrain and enemy tactics. The absence of such a figure in the Second Crusade would prove catastrophic.
Supplies and provisions
Manuel controlled several critical resources that determined whether crusading armies could survive their journey:
- Manuel controlled access to markets where crusaders could purchase essential goods
- He could regulate prices, making supplies affordable or prohibitively expensive
- The emperor also controlled access to ships at Byzantine ports in Asia Minor
- Without adequate provisions, crusading armies would struggle to sustain their troops
Control over supplies gave Manuel enormous leverage. He could effectively cripple a crusading army without engaging in direct military confrontation simply by denying access to food, water, and other necessities.
Byzantine loyalty and intelligence
The question of Byzantine loyalty posed a severe security threat to the crusaders:
- Manuel had signed a treaty with the Turks at Konya
- A poor relationship could lead to the Byzantines betraying crusader movements and plans to Muslim enemies
- This intelligence sharing could prove devastating to crusading forces
Delays and political control
Manuel possessed the ability to halt crusading progress entirely through administrative means:
- During the First Crusade, crusaders were held at Constantinople until they swore oaths of loyalty to Alexius I
- Manuel could impose similar delays on Conrad and Louis if he distrusted them
- Such delays would drain resources and morale
Conrad III's relationship with Manuel I
Initial alliance and strength
Conrad III and Manuel I began with a strong relationship built on mutual interests. The two rulers had formed an alliance against the southern Italian Normans, creating a shared enemy that established a foundation for cooperation. The alliance suggested that Conrad's crusade would benefit from Byzantine support.
The Norman threat was real and immediate for both rulers. The Normans in southern Italy had already demonstrated their military capability and territorial ambitions, making the Conrad-Manuel alliance a logical strategic partnership.
Growing tensions during the march
However, the relationship deteriorated as Conrad's forces marched through Hungary and the Byzantine Empire towards Constantinople. Manuel ordered the Byzantine army, commanded by Prosuch, to follow the German forces. This military shadowing was intended to prevent any German attempts to capture Byzantine territory, but the presence of Byzantine troops following them created suspicion and friction.
Manuel's decision to shadow the German forces with military units revealed his fundamental distrust. Rather than treating Conrad as an ally, he treated him as a potential invader who needed to be watched and controlled.
Violent incidents
The tensions escalated into several violent confrontations that exposed the depth of mistrust between the two groups:
- A Greek soldier killed a German, triggering retaliation
- Frederick of Swabia attempted to burn down a monastery in response
- These incidents revealed the mistrust and hostility between the two groups
Incident Analysis: The Monastery Attack
When a Greek soldier killed a German crusader, Frederick of Swabia's response—attempting to burn down a monastery—demonstrates the breakdown of diplomatic relations:
- A single violent incident escalated into an attack on religious property
- The response was disproportionate and would further damage relations
- Both sides viewed each other with such suspicion that violence became the default response
This pattern of escalation would characterize the entire relationship between the German crusaders and the Byzantines.
The limited oath
As a consequence of these tensions, Conrad was required to make a formal commitment. He swore a limited oath not to act against Manuel I's wishes. This oath was less extensive than what Manuel would demand from Louis, demonstrating Manuel's concerns about German intentions but also his recognition of Conrad's existing alliance.
Louis VII's relationship with Manuel I
Sources of tension
Louis VII faced even greater difficulties in his relationship with Manuel I, stemming from his association with Roger of Sicily. Roger was of Norman origin, making him suspect to the Byzantines. More significantly, Roger and Louis had originally planned to crusade together, and Manuel viewed this planned alliance with deep suspicion.
The Roger of Sicily Problem
Roger's Norman heritage made him a natural enemy of the Byzantine Empire. The Normans had already seized Byzantine territory in southern Italy, and any crusader allied with Roger was automatically viewed as a potential threat to Byzantine security. Louis's association with Roger poisoned his relationship with Manuel from the outset.
Attempts to build trust
Recognising the potential problems, Louis and Pope Eugenius III attempted diplomatic outreach. In autumn 1146, they sent Manuel a letter explaining their crusading intentions, aiming to reassure the Byzantine emperor of their peaceful purposes. However, Manuel's reply mentioned an oath of homage, revealing his continued mistrust.
What is Homage?
Homage meant a formal commitment to acknowledge someone as your overlord—similar to what Alexius had demanded from the First Crusaders. By requesting homage, Manuel was demanding that Louis recognize Byzantine superiority and submit to Byzantine authority, a much more extensive commitment than Conrad had made.
Roger's attacks complicate matters
Just as negotiations were proceeding, the situation worsened dramatically in autumn 1147:
- Roger's admiral, George of Antioch, launched attacks on parts of the Byzantine Empire
- These attacks occurred whilst Louis was travelling to Constantinople
- The timing made it appear that Louis might be coordinating with Roger against Byzantine interests
- Manuel's suspicions seemed confirmed
The timing of George of Antioch's attacks could not have been worse for Louis. Whether coincidental or coordinated, these attacks occurred precisely when Louis was trying to convince Manuel of his peaceful intentions. This devastating timing appeared to confirm Manuel's worst fears about a coordinated Norman-French assault on Byzantine territory.
Louis's oath and agreements
When Louis arrived in Constantinople on 4 October 1147, prolonged negotiations followed. After extended discussions, Louis was compelled to swear an oath of homage to Manuel and guarantee not to seize any Byzantine lands. The oath was more comprehensive than Conrad's, reflecting Manuel's greater distrust. In return, Manuel promised to provide guides and supplies for the French crusade.
Impact of the relationship with Manuel on the crusades
Conrad's campaign challenges
Conrad's problematic relationship with Manuel contributed to the German disaster in multiple ways. Conrad departed from Nicaea on 25 October 1147 with only 8 days of supplies for an estimated 20-day journey. He assumed supplies could be acquired along the route to Iconium.
However, Manuel actually had little control over the inland areas the Germans travelled through. Unable to obtain provisions, the Germans suffered ambush by the Turks near Dorylaeum. They suffered approximately 17% casualties and retreated to Nicaea. Many Germans abandoned the crusade entirely. Conrad's overconfidence, combined with inadequate Byzantine support, devastated his army.
Conrad's Fatal Miscalculation
Conrad's assumption that he could acquire supplies along the route proved catastrophic:
- He carried only 8 days of provisions for a 20-day journey
- He assumed Byzantine markets would be accessible
- He underestimated both the difficulty of the terrain and Manuel's limited control over inland regions
- The result was starvation, vulnerability to Turkish attacks, and the loss of approximately one-sixth of his army
This disaster demonstrates how dependent crusading armies were on Byzantine cooperation, and how devastating inadequate planning could be.
Louis's campaign difficulties
Despite his oath and negotiations, Louis faced similar problems rooted in Manuel's attitude and strategic priorities.
Supply shortages
From early January 1148, the French were desperately short of provisions:
- Local populations would not sell them supplies
- When Manuel's guides did arrange markets, they charged exorbitant prices
- This drained Louis's limited financial resources
The economic warfare waged against the French crusaders was subtle but effective. By allowing markets to exist but controlling prices, Manuel could claim he was fulfilling his obligations while simultaneously weakening the French through economic pressure.
Intelligence sharing with the Turks
The security situation was even more dire than the supply problems:
- Manuel's guides passed information about French movements to local Turkish forces
- This intelligence sharing resulted from Manuel's treaty signed at Konya
- It made it extremely easy for the Turks to track and attack the crusaders
- The guides who were supposed to help them were actually compromising their security
Betrayal Through Intelligence
Manuel's guides served a dual purpose: they appeared to fulfill Manuel's obligations to provide assistance, while simultaneously feeding information to the Turkish forces. This represents perhaps the most damaging aspect of Manuel's relationship with the crusaders—those meant to protect them were actively undermining their security.
The Antalya betrayal
The culmination of Manuel's unreliability came at Antalya:
- Manuel promised Louis that ships would be waiting at Antalya to transport his forces to Antioch
- When Louis reached Antalya on 20 January 1148, the fleet was too small to carry the entire army
- Only Louis and his officers could travel by ship
- The remaining 7,000 troops had to endure a harsh winter march to Tarsus
- Many difficult river crossings claimed additional lives
The Antalya Crisis: A Case Study in Byzantine Unreliability
The situation at Antalya exemplifies how Manuel's broken promises had direct military consequences:
The Promise: Ships sufficient to transport the entire French army to Antioch
The Reality: A fleet too small for the full army
The Consequence:
- Leadership separated from the bulk of the army
- 7,000 troops forced into a winter march through hostile territory
- Additional casualties from river crossings and Turkish attacks
- Further depletion of an already weakened crusading force
This wasn't merely a logistical failure—it represented a complete breakdown of the trust necessary for the crusade to succeed.
Consequences for the Second Crusade
By the time Louis and what remained of his army reached Antioch on 19 March 1148, both crusading forces had been fundamentally compromised:
- Both German and French forces had been severely depleted
- Morale was extremely low
- Financial resources had been drained
- The crusaders felt betrayed or exploited by the Byzantine Greeks
- They had survived, but at tremendous cost in money and lives
- Conrad's relationship with Manuel allowed him safe passage by ship to Acre in April 1148
- However, his overconfidence and the lack of effective Byzantine support had cost him most of his army
The irony of Conrad's situation was stark: his alliance with Manuel, which should have been an advantage, ultimately meant little. While he received safe passage after his army's destruction, this was poor compensation for the loss of the majority of his forces. The alliance proved hollow when it mattered most.
The significance of these relationships
The relationships between Conrad III, Louis VII, and Manuel I reveal several important themes about medieval crusading and international politics.
Political complexity of crusading
Crusades were not simply religious expeditions but required careful diplomatic management:
- Pre-existing alliances and rivalries (such as Conrad's alliance with Manuel against the Normans, or Louis's association with Roger of Sicily) significantly impacted crusading success
- The lack of a formal Byzantine invitation in 1147, unlike 1095, fundamentally changed the power dynamic
- Religious motivation alone was insufficient without political cooperation
Crusading as Statecraft
The Second Crusade demonstrates that crusading success required more than religious fervor or military strength. It demanded sophisticated diplomatic skills, careful management of existing alliances, and the ability to navigate complex political relationships. The failure of both Conrad and Louis to secure genuine Byzantine cooperation doomed their military efforts before they truly began.
Byzantine strategic interests
Manuel I's actions reveal how Byzantine strategic priorities shaped his relationship with the crusaders:
- Manuel prioritised Byzantine security over crusading success
- His treaty with the Turks at Konya served Byzantine interests but undermined the crusaders
- He used oaths and the threat of delays to control crusader movements
- Byzantine guides served as intelligence gatherers rather than genuine helpers
Manuel's Perspective
From Manuel's viewpoint, his actions were rational and protective of Byzantine interests:
- He had not invited these crusaders and owed them nothing
- The Norman threat was more immediate than any Muslim threat
- Large Western armies passing through his territory posed genuine security risks
- His treaty with Konya secured Byzantine borders more reliably than crusader success ever would
Understanding Manuel's perspective helps explain why he prioritized Byzantine security, even though it contributed directly to the crusade's failure.
Leadership failures
Both crusading leaders demonstrated significant failures in judgment and preparation:
- Both Conrad and Louis underestimated the importance of Byzantine cooperation
- Conrad's overconfidence about acquiring supplies proved disastrous
- Neither leader adequately prepared for the possibility of Byzantine obstruction or betrayal
- The failure to secure genuine Byzantine support before departing contributed significantly to the Second Crusade's failure
Contrast with the First Crusade
The comparison with the First Crusade highlights what changed between 1095 and 1147:
- The First Crusade benefited from Alexius I's active invitation and support
- Taticius's military guidance proved invaluable to the First Crusaders
- The lack of similar genuine support in 1147 helps explain the Second Crusade's failure
- The changed Byzantine attitude—from invitation to suspicion—marked a crucial shift
Comparing the Two Crusades
| Aspect | First Crusade (1095) | Second Crusade (1147) |
|---|---|---|
| Byzantine Invitation | Alexius I actively requested help | Manuel I did not invite crusaders |
| Military Support | Taticius provided as guide and military advisor | No genuine military support provided |
| Byzantine Attitude | Cooperative (with reservations) | Suspicious and obstructive |
| Result for Crusaders | Successful capture of Jerusalem | Devastating casualties and failure |
This comparison demonstrates how crucial Byzantine cooperation was to crusading success.
Key Points to Remember:
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No invitation: Unlike 1095, Manuel I did not invite crusaders in 1147, making good relations essential but difficult to achieve
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Four critical factors: The Byzantine emperor controlled military support, supplies and provisions, Byzantine loyalty (including intelligence about crusader movements), and the level of delays imposed on crusading forces
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Conrad's alliance undermined: Despite an initial alliance against the Normans, Conrad's relationship with Manuel deteriorated due to Byzantine surveillance, violent incidents, and mutual suspicion. Conrad swore a limited oath
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Louis faced greater suspicion: Louis's association with Roger of Sicily created deeper mistrust. He was forced to swear a more comprehensive oath of homage and guarantee not to take Byzantine lands
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Betrayal or exploitation: Manuel's guides overcharged for supplies, shared intelligence with the Turks (due to his Konya treaty), and failed to provide promised ships at Antalya, devastating both crusading armies
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Campaign disasters: Both German and French forces suffered massive casualties and resource depletion, largely due to inadequate Byzantine support and outright obstruction, contributing significantly to the Second Crusade's failure
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Political over religious: The Second Crusade demonstrates that political relationships and diplomatic skill were as important as military strength or religious motivation for crusading success