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The Lives of the Caesars · Character

Sejanus

The Praetorian prefect who turned a bodyguard into a secret police, ruling Rome from Tiberius's shadow until the emperor's suspicion caught up with him.

supporting

Also known as Aelius Sejanus

First appearance: Book III: Tiberius

As a supporting figure in The Lives of the Caesars, Sejanus is not background color—the story leans on what they do once the chapter opens.

Tiberius's favorite; after his death, Tiberius becomes even more cruel.
In the storyBook III: TiberiusOpen this moment free

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In Book III: Tiberius: Tiberius's favorite; after his death, Tiberius becomes even more…

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The fuller portrait of Sejanus sits in Reading Lens — open the free preview to keep reading with notes on the page.

See Sejanus in Book III: Tiberius

Character Web

19 connections

A slice of how Sejanus sits in the book — open the reader for the full interactive map.

AUAugustusACAchillesTITiberiusCLClaudiusCACaligulaSESejanus

Relationship types

  • Other

Character groups

  • Emperors and key figures
  • Protagonist
  • Mythological, historical, and cultural references

+14 more in the full Character Web

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Narrative arc

Story tension across the book — this chapter sits in Exposition.

SetupEscalationAftermathClimax
  • Setup
  • Escalation
  • Breaking point
  • Aftermath
  • Closing

The emotional and psychological peak occurs in the stark contrast between the two irreconcilable origin storie…

Full beat labels and climax notes unlock in the reader.

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In the story

Sejanus appears across 1 companion beat. Open any chapter in the free preview to see the notes beside the text.

Chapter companion notes

Spoil-light check-ins for Sejanus unlock in the free preview.

See Sejanus in Book III: Tiberius