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A legacy hero is a type of character, usually a superhero, that is the descendant or relative of an already or previously existing hero who either inherits or adopts the name and attributes of the original.
One of the earliest examples of this character type was comic strip hero The Phantom, assumed to be immortal by his enemies. The identity was actually used by various members of a single family, the descendants of Christopher Walker.
In the video games series, Assassin's Creed, many of the game's characters are descended from bloodlines of Assassins. In the Donkey Kong franchise, it is stated that Cranky Kong is the original Donkey Kong from the 1981 arcade game, while the Donkey Kong in later games is his grandson.