The Wrongful King’s Fall
Le Morte d'ArthurThis flow traces King Mark’s rise through Cornwall, his repeated acts of treachery, and the legacy of violence he leaves behind.
increasing
Bearing strength in each event
decreasing
A King Inherits Cornwall

Mark’s Royal Position
A ruler with power
King Mark governs Cornwall and holds authority over Tristram’s early life. His relationship to his nephew initially looks like kinship and patronage.
Insecurity beneath rule
Mark’s pride and jealousy grow as Tristram’s reputation rises. A king threatened by a stronger kinsman begins to treat royal power as a weapon for private ends.
The Nephew Saves the Realm

A Debt Mark Cannot Repay
Tristram wins the contest
Tristram defeats Marhaus and protects Cornwall from Ireland’s tribute claim. Mark’s authority is preserved through the nephew’s strength.
Gratitude turns to resentment
Mark receives the benefits but becomes jealous of Tristram’s fame and his closeness to Isoud. The king cannot tolerate the independence that his own dependence helped create.
The King’s Secret Attacks

Royal Power Becomes Treachery
Jealousy guides action
Mark attacks Tristram on the road and later seeks to banish or imprison him. His outward reconciliation masks continuing hostility.
Isoud is controlled
Mark’s marriage to Isoud does not secure her love. His repeated attempts to control her and Tristram deepen the court’s distrust.
The Murder of Boudwin

A Brother Is Betrayed
Boudwin earns loyalty
Prince Boudwin defeats the invaders and becomes a beloved leader. His success makes Mark fear his influence.
Murder destroys trust
Mark kills Boudwin and tries to have his family removed. Anglides escapes with their child, ensuring that the act creates enemies rather than safety.
Mark’s Enduring Infamy

A Reputation of Treason
His conduct is remembered
Mark’s attempts to destroy Tristram and his betrayals of kin make him notorious. Knights speak of him as a ruler who rewards service with danger.
Violence closes the story
His final treachery kills Tristram and Isoud. Mark’s power survives for a time, but his legacy is defined by the destruction his envy caused.
Before Tristram’s return from France
After Tristram is knighted to meet Marhaus
After Tristram and Isoud’s marriage potion takes effect
After Boudwin’s victory over invading forces
After the court learns of his attacks on Tristram