Conversation so far:
Where was he born?
Bobby Fischer was born at Michael Reese Hospital in Chicago, Illinois.
When was Bobby Fischer born?
Bobby Fischer was born at Michael Reese Hospital in Chicago, Illinois, on March 9, 1943.
Who were Bobby Fischer's parents?
Bobby Fischer's birth certificate listed his father as Hans-Gerhardt Fischer, also known as Gerardo Liebscher, a German biophysicist. His mother, Regina Wender Fischer, was a US citizen.

Question: how did his parents meet?
Self-contained rewrite: How did Bobby Fischer's parents meet?