Both look to be forms of
Elena which itself is a form of
Helen.
"English form of the Greek ‘Ελενη (
Helene), probably from Greek ‘ελενη (helene) meaning "torch" or "corposant", or possibly related to σεληνη (selene) meaning "moon". In Greek mythology
Helen was the daughter of
Zeus and
Leda, whose kidnapping by
Paris was the cause of the Trojan War. The name was also borne by the 4th-century Saint
Helena, mother of the
Roman emperor
Constantine, who supposedly found the True Cross during a trip to Jerusalem."