Where it comes from
possibly a Provençal form of 'Aenor', or related to Helen
Also known as
Eleonora (Italian), Leonor (Spanish/Portuguese), Elinor (alternate English spelling)
Fun Fact
Eleanor of Aquitaine, one of the most powerful women of medieval Europe, queen consort of both France and later England, is largely credited with spreading this name across the European nobility in the 12th century.