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How Cersei’s Children Die in Game of Thrones

Joffrey and Myrcella are poisoned; Tommen jumps from the Red Keep after Margaery dies in the Sept explosion.
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Spoilers for Seasons 4–6: Cersei Lannister’s children die in three different ways: Joffrey is poisoned at his wedding feast, Myrcella is poisoned on her return from Dorne, and Tommen jumps from a window after the destruction of the Great Sept of Baelor. The series publicly presents all three as children of Robert Baratheon; they are, in fact, Cersei and Jaime Lannister’s children.

How each of Cersei’s children dies

Child Cause of death Who is identified as responsible Episode Immediate context
Joffrey Baratheon Poisoning The death scene shows the poisoning, but Cersei’s accusation against Tyrion is not proof of his guilt. Season 4, Episode 2, “The Lion and the Rose” He collapses during his wedding feast to Margaery Tyrell, an event often called the Purple Wedding.
Myrcella Baratheon Poisoning Ellaria Sand; a later episode names the poison as the Long Farewell. Season 5, Episode 10, “Mother’s Mercy” She dies as she returns from Dorne.
Tommen Baratheon He jumps from a window at the Red Keep. The episode account establishes his action after the Sept’s destruction; it is not a poisoning. Season 6, Episode 10, “The Winds of Winter” He learns that Margaery has died in the destruction of the Great Sept of Baelor.

Joffrey: poisoned at the Purple Wedding

Joffrey dies in Season 4, Episode 2, “The Lion and the Rose,” during his wedding feast with Margaery Tyrell. The episode transcript shows him convulsing and dying, then shows Cersei accuse Tyrion. That accusation is part of the scene, not proof that Tyrion poisoned him. An episode guide for “The Laws of Gods and Men” later describes Grand Maester Pycelle confirming the poisoning and identifying the Strangler in connection with Sansa’s wedding necklace. The death scene itself does not establish every conspirator’s role.

Myrcella: poisoned on her return from Dorne

Myrcella dies in Season 5, Episode 10, “Mother’s Mercy,” after poison is administered by Ellaria Sand. The series names the poison later: in Season 7, Episode 3, “The Queen’s Justice,” Cersei identifies it as the Long Farewell, and Qyburn says death from it is certain. The name is therefore supplied retrospectively, not in Myrcella’s death episode.

Tommen: jumps after the Sept explodes

In Season 6, Episode 10, “The Winds of Winter,” the Great Sept of Baelor is destroyed in an explosion, killing Margaery. Tommen sees the explosion and later jumps from a window of the Red Keep. The sequence links his death to the immediate aftermath of Margaery’s death; his method is distinct from the poisonings that kill Joffrey and Myrcella.

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Why the accusations and later confirmations matter

The three deaths are not explained in the same way on screen. Joffrey’s episode depicts the poisoning and Cersei’s accusation, but the accusation alone does not establish guilt. Myrcella’s responsibility and poison are stated later in dialogue. Tommen’s death follows the Sept explosion and Margaery’s death, with the episode sequence providing the context for his jump.

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