Near the end of The Dark Knight Rises, we learn that
John Blake's birth name is Robin, and that John Blake is merely an alias.
What motivated the Nolan brothers to include this in the film? Are they merely nudging and winking at the audience? Furthermore, why Robin? The real Robin's (original) name is Dick Grayson (though as the character evolved, was reborn, became Nightwing among others his identity changed).