"Beau Brummell"
Caricature of Beau Brummell by Robert Dighton
Public DomainCaricature of Beau Brummell by Robert Dighton

Beau Brummell (1778-1840) was a leader of fashion in the very late 18th and early 19th century.  He popularised an elegant style of dress as well as the habits of bathing and shaving daily.  His name became a byword for dandies.