Damian Wayne is the son of Batman and Talia al Ghul. This makes him an heir to the world's greatest crime-fighter, and its greatest super-villain Ra's al Ghul. Damian became Robin. Damian's existence was initially unknown to Batman,Damian was intended to be a formidable warrior. Raised by Talia and the League of Assassins, Damian became a talented martial artist by the time he was a pre-teen.