Timothy Drake (Earth -52)

Tim Drake was the former sidekick of Batman, and successor of Jason Todd.

History
After Jason Todd died of unknown reasons (presumably to Joker, who killed him in most variations of the character), Tim became Jason's successor as Robin.

He would eventually die of unknown reasons, and was successed by Bruce's blood son, Damian Wayne. After Damian's death, Bruce went insane, and merged his body with that of The Flash's, becoming the Red Death.