Question: What is the original name of the person who made Lagrange's theorem?
Sentence (from "Joseph-Louis Lagrange"): born Giuseppe Lodovico Lagrangia or Giuseppe Ludovico De la Grange Tournier (also reported as Giuseppe Luigi Lagrange or Lagrangia) (25 January 1736 – 10 April 1813), was an Italian Enlightenment Era mathematician and astronomer.
Relevant evidence: Yes