Who is the oldest Belmont Castlevania?

Who is the oldest Belmont Castlevania? Leon is the earliest named member of the Belmont Clan. He was the first to use the Vampire Killer and was responsible for swearing his clan to fight evil for eternity.

Leon is the earliest named member of the Belmont Clan. He was the first to use the Vampire Killer and was responsible for swearing his clan to fight evil for eternity.