Laura Cruz

Laura Cruz (later known as Lara Cruz) was the first name for the heroine of the Tomb Raider games, picked by Guy Miller. It was first changed to Lara (which is the name used in the prototype stories) due to Americans not being able to pronounce Laura, and Cruz was later replaced with British name Croft, which was picked out of the phone book. Change in the backstory molded the character into the Lara Croft we now know.

Laura Cruz was a mercenary / tomb raider of some unknown Latin American country

Little about the character was revealed in "10 Years of Tomb Raider a Gametap Retrospective" bonus video that was included in the collectors edition of Tomb Raider: Anniversary.