Damian Wayne is the son of Batman and Talia al Ghul, grandson to Ra's al Ghul. Born during Son of the Demon as Ibn al Xu'ffasch, his existence was kept secret until the events of Batman and Son. Eventually he became the fifth Robin during Batman Reborn. He has been a member of the Batman Family, Batman Incorporated, the League of Assassins and the Teen Titans.
The concept of the character was created by Mike W. Barr and Jerry Bingham in Batman: Son of the Demon. (1987) The character was named Damian Wayne and was further developed by Grant Morrison and Andy Kubert, first appearing in Batman #655. (2006)