Marie Jules César Savigny
Marie Jules César Lelorgne de Savigny was a French zoologist and naturalist who served on Emperor Napoleon's Egypt expedition in 1798. He published descriptions of numerous taxa and was among the first to propose that the mouth-parts of insects are derived from the jointed legs of segmented arthropods.
5 April 1777
Born on the same birth day (5 April): Albert Roussel • Alexei Glukhov • Bette Davis • Eetu Muinonen • Georg Misch • Hiromi Taniguchi • Hugo Claus • Lawrence Dale Bell • Les Binks • Pascal Couchepin • Paul Chung • Pavlo Khnykin • Pierre-Albert Chapuisat • Quade Cooper • Sercan Yıldırım • Sir Thomas Hardy, 1st Baronet
Born in the same month (April 1777): Carl Friedrich Gauss • Henry Clay