The following is an extract from "Extraordinary Popular Delusions and the Madness of Crowds" by Charles Mackay (1841):
A barbarous and fiercely-contested duel was fought in November 1778, between two foreign adventurers, at Bath, named Count Rice and the Vicomte du Barri. Some dispute arose relative to a gambling transaction, in the course of which Du Barri contradicted an assertion of the other, by saying, "That is not true!" Count Rice immediately asked him if he knew the very disagreeable meaning of the words he had employed. Du Barri said he was perfectly well aware of their meaning, and that Rice might interpret them just as he pleased. A challenge was immediately given and accepted. Seconds were sent for, who, arriving with but little delay, the whole party, though it was not long after midnight, proceeded to a place called Claverton Down, where they remained with a surgeon until daylight. They then prepared for the encounter, each being armed with two pistols and a sword.
The ground having been marked out by the seconds, Du Barri fired first, and wounded his opponent in the thigh. Count Rice then levelled his pistol, and shot Du Barri mortally in the breast. So angry were the combatants, that they refused to desist; both stepped back a few paces, and then rushing forward, discharged their second pistols at each other. Neither shot took effect, and both throwing away their pistols, prepared to finish the sanguinary struggle by the sword. They took their places, and were advancing towards each other, when the Vicomte du Barri suddenly staggered, grew pale, and, falling to the ground, exclaimed, "Je vous demande ma vie." His opponent had but just time to answer, that he granted it, when the unfortunate Du Barri turned upon the grass, and expired with a heavy groan. The survivor of this savage conflict was then removed to his lodgings, where he lay for some weeks in a dangerous state.
The coroner's jury, in the mean while, sat upon the body of Du Barri, and disgraced themselves by returning a verdict of manslaughter only. Count Rice, upon his recovery, was indicted for the murder notwithstanding this verdict. On his trial he entered into a long defence of his conduct, pleading the fairness of the duel, and its unpremeditated nature; and, at the same time, expressing his deep regret for the unfortunate death of Du Barri, with whom for many years he had been bound in ties of the strictest friendship. These considerations appear to have weighed with the jury, and this fierce duellist was again found guilty of manslaughter only, and escaped with a merely nominal punishment.