[The name "Eleanor" in English is usually a form of "Helen" (or "Ellen" or "Elaine"), derived from the Greek for "light", and has many variants in various languages.]
Among the women known to history as "Queen Eleanor" are:
... colony on Hispaniola
James Cook, (1728-1779), explored the Pacific, discovering or mapping many lands and islands
Hernan Fernando Cortes, conquered the Aztec empire in ...