Agrippina had been betrayed by those she had put in power, by Nero above all, but also by Burrus, Anicetus, and not least, Seneca. The sage she had rescued from Corsica, who owed all he had to her, had declined to raise his voice against her murder. Politics had first made bedfellows of her and Seneca—in the literal sense, some claimed. But politics, and her son’s disordered mind, had arranged things such that only one of them could survive.

