Castlevania: Lament of Innocence is a 2003 action-adventure game for PlayStation 2, serving as an origin story for the franchise. It follows Leon Belmont, the progenitor of the Belmont clan, as he battles Dracula and uncovers the origins of the vampire lord. The game explores the foundational conflict between Leon and Dracula, redefining the series' lore.
Lament of Innocence is one of several Castlevania games that attempts to give the series an `origin story.` This retconned Legends, and was later retconned by Lords of Shadow. This one makes Leon the patriarch of the Belmont clan, explains the origin of Dracula, and also defines the conflict between the two.