Aliénor is the Old French/Provençal original of Eleanor — possibly from Occitan alia (other) and meaning "other Aenor" (after her mother). Aliénor d'Aquitaine (1122-1204) was the Duchess of Aquitaine, Queen of France then Queen of England — mother of Richard the Lionheart and King John, the most powerful woman of the medieval period.
Aliénor is widely used in modern France.
Aliénor reduces to six — the number of medieval queen.