Latest / Nero: Mad Tyrant or Misunderstood Emperor? — Fexingo History / Nero's Assassination of Britannicus: The Poisoned Prince
Transcript
- Lucas: So, we've talked a lot about Nero's reign — the fire, the Golden House, the artistic ambitions. But there's one story from the very beginning of his rule that I think really sets the tone for everything that followed: the murder of Britannicus. Luna: Britannicus — that's his stepbrother, right? The son of Claudius and Messalina? Lucas: Exactly. Britannicus was Claudius's biological son, and by all accounts, he was the natural heir. But when Claudius married Agrippina, she maneuvered to have Nero — her own son from a previous marriage — adopted and pushed ahead in the succession. After Claudius died — and we've covered that in episode 118 — Nero became emperor at just seventeen. Lucas: Britannicus was younger, maybe thirteen or fourteen, and he was a constant reminder that Nero's claim to the throne was shaky. The boy was popular with certain factions, and as long as he lived, he was a potential rallying point for opposition. Luna: So Nero had him killed. How did it happen? Lucas: The sources — mainly Tacitus in his Annals and Suetonius — tell a chilling story. It was early in 55 AD, just a year or so into Nero's reign. Britannicus was at a dinner party in the imperial palace, the Domus Tiberiana. He was served a hot drink that his taster, as usual, sampled first. But it was too hot, so it was sent back to be cooled — and that's when the poison was added. Luna: So the taster didn't die. That's clever. Lucas: Very. The poison was swift and potent. Tacitus says it was so fast that Britannicus couldn't even speak — he just collapsed. The guests panicked, but Nero calmly remarked that Britannicus had a history of epileptic fits and that he'd recover. Then he ordered the dinner to continue. Lucas: The poisoner was a woman named Locusta — she'd been convicted of poisoning before and was basically on retainer for the imperial family. She'd allegedly helped Agrippina kill Claudius as well. Nero rewarded her with a large estate and even sent her students to learn her craft. Luna: Wait — he sent students? So this was like a poison school? Lucas: That's how Suetonius tells it. Locusta became a sort of state-employed assassin. And the method she used on Britannicus was probably aconite, a plant-based poison that causes cardiac arrest. It was known, but hard to detect. Lucas: The body was cremated that very night — hastily, with no public mourning. Nero wanted no funeral, no chance for the crowd to see the body. Britannicus was buried in the Campus Martius, in a rainstorm, according to Tacitus, as if the gods themselves were weeping. Luna: That's brutal. And what about Agrippina? She must have been furious. Lucas: This is where it gets really interesting. Agrippina had been the power behind Nero's rise, but by 55 AD, Nero was starting to push back. He'd fallen under the influence of Seneca and Burrus, who wanted to curb her influence. Britannicus's murder was a direct blow to her — she had been protecting him as a potential backup plan, and Nero knew it. Lucas: Tacitus says that after Britannicus's death, Agrippina realized her own life was in danger. She started building alliances, even flirting with the idea of supporting a rival — but Nero was one step ahead. The murder of Britannicus was a declaration: Nero would tolerate no rival, not even his own mother. Luna: It's like the first domino. And it happened so early in his reign. Lucas: Exactly. And think about the context — this was just months after Claudius's death. The regime was still fragile. Nero needed to send a message, and he did. But it also poisoned his relationship with the Senate and the people. Tacitus says that while some feared Nero more, others pitied Britannicus and saw Nero as a tyrant from the start. Luna: And Locusta just walked free? She wasn't punished? Lucas: Far from it. She became a kind of imperial resource. Later, when Nero wanted to get rid of someone — and he did, many times — he called on Locusta. She was eventually executed after Nero's fall, under Galba, but during Nero's reign, she was protected. Lucas: The story of Britannicus also shows us the ruthlessness of Roman imperial politics. It's not just about Nero — it's about the whole system. A teenage emperor, a scheming mother, a court full of advisors with their own agendas. And in the middle, a boy who was inconvenient simply because he existed. Luna: It reminds me of something you mentioned earlier — about how listener support keeps this show going. If people value these deep dives into history, they can help keep it ad-free at buy me a coffee dot com slash fexingo. It's a small way to say this kind of content matters. Lucas: That's right. And it lets us keep digging into stories like this — the ones that don't always make the textbook. So, back to Britannicus: one of the most striking details is how the public reacted. There were rumors that Nero himself had tried to poison Britannicus earlier, but the boy had built up an immunity. That's probably legendary, but it shows how quickly the narrative turned against Nero. Luna: So the murder didn't really secure his position, did it? Lucas: In the short term, yes — he eliminated a rival. But long term, it damaged his reputation. People remembered. When Nero faced the Pisonian conspiracy ten years later, the memory of Britannicus was part of the reason why senators and aristocrats were willing to risk everything to remove him. Lucas: And there's another layer: Britannicus's name. He was originally named Tiberius Claudius Caesar, but after his father Claudius's conquest of Britain, he was given the honorific 'Britannicus.' That name was a reminder of the glory of Claudius's reign, and Nero's regime tried to suppress it. Coins from the period show Nero's name prominently, and Britannicus's image was erased from some monuments. Luna: Damnatio memoriae? Lucas: Exactly. The official erasure. But it didn't work. Tacitus tells us that people still whispered about Britannicus, and his ghost haunted Nero's reputation. In a way, the boy who died at fourteen became a symbol of Nero's tyranny. Luna: So what happened to Locusta after Nero? Lucas: After Nero's suicide in 68 AD, Galba took power. He wanted to distance himself from Nero's crimes, so he had Locusta paraded through the streets and executed. It was a symbolic act — a way of saying the old regime's poisoners were gone. But by then, the damage was done. Lucas: The murder of Britannicus is a key episode for understanding Nero. It shows him as calculating, ruthless, and willing to eliminate family for power. But it also shows the precarious position he was in — a young emperor surrounded by threats, real and imagined. Luna: It's a far cry from the artist emperor we've talked about in other episodes. Lucas: Absolutely. And that's the contradiction at the heart of Nero's reign. He wanted to be Apollo, a performer loved by the people, but he also had to play the game of Roman power politics, which was bloody and unforgiving. Britannicus was the first victim of that contradiction, but he wouldn't be the last. Luna: So next time, maybe we can talk about the other victims — like his wife Octavia? Lucas: That's a great idea. Octavia's story is just as tragic. But for now, we've covered the death of a prince and the birth of a tyrant. Thanks for listening.