Lenora is derived from
Eleanor, about which the present database has this to say:
ELEANOR f English
French form of the Provençal name Alienor, which is most likely a Germanic name of unknown meaning, though it is possibly a form of
HELEN. This name was borne by
Eleanor of Aquitaine (12th century), the wife of both
Louis VII, the king of
France, and
Henry II, the king of England.