Soon afterwards he made his will, and had it signed by all the magistrates as witnesses. But he was prevented from proceeding further by Agrippina, accused by her own guilty conscience, as well as by informers, of a variety of crimes. It is agreed that he was taken off by poison; but where, and by whom administered, remains in uncertainty. Some authors say that it was given him as he was feasting with the priests in the Capitol, by the eunuch Halotus, his taster. Others say by Agrippina, at his own table, in mushrooms, a dish of which he was very fond.Tacitus informs us, that the poison was prepared by Locusta, of whom we shall hear, NERO, C. xxiii. etc. The accounts of what followed likewise differ. Some relate that he instantly became speechless, was racked with pain through the night, and died about daybreak; others, that at first he fell into a sound sleep, -and afterwards. his food rising, he threw up the whole; but had another dose given him; whether in water-gruel, under pretence of refreshment after his exhaustion, or in a clyster, as if designed to relieve his bowels, is likewise uncertain.

His death was kept secret until everything was settled relative to his successor. Accordingly, vows were made for his recovery, and comedians were called to amuse him, as it was pretended, by his own desire. He died upon the third of the ides of October [13th October], in the consulship of Asinius Marcellus and Acilius Aviola, in the sixty-fourth year of his age, and the fourteenth of his reign.A. U. C. 806; A. D 54. His funeral was celebrated with the customary imperial pomp, and he was ranked amongst the gods. This honour was taken from him by Nero, but restored by Vespasian.