Original: The cave was first explored on December 18, 1994 by a group of three speleologists: Eliette Brunel-Deschamps, Christian Hillaire, and Jean-Marie Chauvet, for whom it was named.
Simplified: The cave was named after Jean-Marie Chauvet, who discovered it on December 18,1994, together with Christian Hillaire and Eliette Brunel-Deschamps.