Beau Brummell, ne George Bryan Brummell (7 June 1778, London, England - 30 March 1840, Caen, France), was the arbiter of men's fashion in Regency England and a friend of the Prince Regent, the future King George IV. He established the mode of men wearing understated, but fitted, beautifully cut clothes including dark suits and full length trousers, adorned with an elaborately-knotted cravat.