an éminence grise

(formal)

someone who has a lot of power and influence but no official position Although he never became a minister, he was the party's éminence grise for 15 years.

Common Names:

Name	Pronounced	Usage
Abidemi	-	Western African, Yoruba
Darina (1)	-	Irish
Kreindel	-	Yiddish
Rebeccanne	-	English (Rare)
Eckehard	E-ke-hahrt	German
Rebekka	re-BE-kah (German), RE-bek-kah (Finnish)	German, Dutch, Danish, Norwegian, Icelandic, Faroese, Finnish, Biblical Greek