%c3%a9l%c3%a9na

This appears to be a URL-encoded string rather than a plain-text name. Decoding it yields Éléna, a French form of Helen, which derives from the ancient Greek name Helénē. The root is most likely connected to the Greek word for torch or light, though some scholars link it to Selene, the moon goddess. The name spread widely through the story of Helen of Troy and later through Saint Helena, mother of the Roman emperor Constantine; related forms include Elena, Helena, Ellen, and Eleanor.