On the night of May 11, 1812, John Williams of Redruth in Cornwall awakened his wife and told her he’d dreamed that he was in the lobby of the House of Commons and saw a man shoot the chancellor. Twice he went back to sleep, and twice he had the same dream.
Williams repeated the experience to friends in the following days, one of whom told him, “Your description is not at all that of the Chancellor, but is certainly very exactly that of Mr. Perceval, the chancellor of the exchequer.” Williams was explaining that he had never met or corresponded with this man when a messenger arrived from Truro with word that Perceval had been shot by an assassin in the lobby of the House of Commons on May 11 — the night of Williams’ dream.
According to a contemporary news account, Williams visited the spot six weeks later: “Immediately that he came to the steps at the entrance of the lobby, he said, ‘This place is as distinctly within my recollection, in my dream, as any room in my house,’ and he made the same observation when he entered the lobby. He then pointed out the exact spot where Bellingham stood when he fired, and which Mr. Perceval had reached when he was struck by the ball, where, and how he fell. The dress both of Mr. Perceval and Bellingham agreed with the description given by Mr. Williams, even to the most minute particular.”