Dict. des lett. franç., 19e s., 1972 (Prudhomme (René-François-Armand Sully); b. 3/16/1839, Paris; d. 1907, Châtenay; wrote as Sully Prudhomme)
Encyclopedia Britannica, viewed on 24th June 2014 (Sully Prudhomme, pseudonym of René-François-Armand Prudhomme (born March 16, 1839, Paris - died Sept. 7, 1907, Châtenay, France), French poet who was a leading member of the Parnassian movement ...) http://www.britannica.com/EBchecked/topic/572981/Sully-Prudhomme