Domina Tempora
Domina Tempora
Marianne Fisher
16: Castor: The Roman Prince History Forgot
14 minutes Posted Jul 8, 2026 at 12:00 am.
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In this episode of Domina Tempora, we shine a light on Drusus the Younger — Tiberius’s only natural son, affectionately nicknamed “Castor” by the Roman people — the capable prince who was largely erased from history.

A respected military commander known for his integrity and popularity with the legions and the public, Drusus represented the best hope for a stable succession in the early Julio-Claudian dynasty. Yet his promising life was cut short in 23 CE amid the deadly palace intrigues of his father’s court, with Sejanus and others suspected of poisoning him to clear their own path to power.

We explore why this virtuous prince was overshadowed, what his death reveals about the toxic environment of Tiberius’s reign, and how the loss of “Castor” accelerated Rome’s slide into tyranny.

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