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): Aleksei Budõlin • Clas Thunberg • George Frederick, Margrave of Brandenburg-Ansbach • Sergey Chaplygin • Vilhelm Carlberg

Born in the same month (April 1777): Carl Friedrich Gauss • Henry Clay