Publication history of Dick Grayson leadership of the Titans to Wonder Girl, and takes a leave of absence from the team. In pre-"Crisis on Infinite Earths" continuity, the maturing Dick Grayson grows weary of his role as Batman's young sidekick. He renames himself Nightwing, recalling his adventure in the Kryptonian city of Kandor, where he and Batman meet the local hero of the same name. "Nightwing: Secret Files & Origins" #1 and "Nightwing: Year One" tell the full post-Crisis version of how Dick Grayson gives up his identity as Robin (having been "fired" by Batman). Uncertain what to do with his new-found independence, Dick considers
Dick Grayson position on the Justice League. He also has a daughter, Nightstar (Mar'i Grayson), whom he fathered with Starfire. Nightstar aligns herself with Batman's Outsiders and romantically involves with his and Talia al Ghul's son, Ibn al Xu'ffasch. After Ibn and Mar'i marries, they have a daughter and son, and thus Dick and Bruce Wayne become in-laws and grandfathers of their respective progenies' children. Dick and Bruce reconcile at the end of the story. In the Elseworlds mini-series "," Dick Grayson (as Robin), along with Barbara Gordon (as Batgirl), are tortured to death by the Joker with his Kryptonian gauntlets, driving