Clément Ader, French engineer, designed the Ader Avion III (d. 1926)
Clément Ader (2 April 1841 – 3 May 1925) was a French inventor and engineer who was born in Muret, Haute-Garonne (a distant suburb of Toulouse), and died in Toulouse. He is remembered primarily for his pioneering work in aviation. In 1870 he was also one of the pioneers in the sport of cycling in France.