Conversation so far:
When was Stan Brakhage born?
Stan Brakhage was born on January 14, 1933.
Where was Stan Brakhage born?
Stan Brakhage born Robert Sanders in Kansas City, Missouri on January 14, 1933.
Who were Stan Brakhage's parents?
Stan Brakhage was adopted and renamed three weeks after his birth by Ludwig and Clara Brakhage.

Question: Did he have any siblings?
Self-contained rewrite: Did Stan Brakhage have any siblings?