Original: Gabrielle Bonheur '' Coco '' Chanel ( 19 August 1883 10 January 1971 ) was a pioneering French fashion designer whose modernist philosophy , menswear-inspired fashions , and pursuit of expensive simplicity made her an important figure in 20th-century fashion .
Simplified: Gabrielle Bonheur '' Coco '' Chanel ( 19 August 1883 -- 10 January 1971 ) was French fashion designer .