Burr-Hamilton duel, duel fought between U.S. Vice Pres. Aaron Burr and Alexander Hamilton, former first secretary of the U.S. Treasury, on July 11, 1804, in Weehawken, New Jersey, that resulted in the death of Hamilton the following day. The two men had long been political rivals, but the immediate cause of the duel was disparaging remarks Hamilton had allegedly made about Burr at a dinner. Hamilton and Burr had an acrimonious relationship that dated to 1791, when Burr defeated Hamilton’s father-in-law, Gen. Philip John Schuyler, for a seat in the U.S. Senate. Burr incurred the enmity of H...