Lagrange, J. L. (Joseph Louis), 1736-1813 (Personal Name)
LCCN 04-7770: His Mécanique analytique, 1811-15 (hdg.: Lagrange, J[oseph] L[ouis] comte, 1736-1813; usage: J.L. Lagrange)
LC data base, 1-21-86 (hdg.: Lagrange, Joseph Louis, comte, 1736-1813; usage: J.L. Lagrange)
Burzio, F. Lagrange, c1993: p. 23 (Giuseppe-Luigi Lagrange; b. in Turin) p. ix, etc. (most references using forename(s) appear as "Luigi Lagrange")
Briano, G. Giuseppe Luigi Lagrangia, 1861.
Britannica: 15th ed. (Lagrange, Joseph-Louis, count (comte) de l'Empire, original Italian Giuseppe Luigi Lagrangia; b. 25 Jan. 1736, Turin, Sardinia-Piedmont; d. 10 April 1813, Paris; Italian-French mathematician who made great contributions to theory of numbers and to analytic and celestial mechanics; by 1761 recognized as one of the greatest living mathematicians; pub. Mécanique analytique, 1788)
Dict. of sci. biog. (Lagrange, Joseph Louis; mechanics, celestial mechanics, astronomy, mathematics; life and career in three periods: Turin, 1736-66; Berlin, 1766-87; Paris, 1787-1813)
Grande ency. (Lagrange (Joseph-Louis); b. 1726 [sic]; d. 1813; family of French origin)