barón

baron (male ruler of a barony); baron, bigwig (person of great power in society, especially in business and politics)

“Los barones, que después de las catalanas hicieron notar su malestar con la dirección nacional por la venta de la sede de Génova, se reconocen ahora satisfechos por el impulso que ha cogido de forma repentina el PP.” — The barons that, after the Catalan elections did express their disapproval of the national management in relation with how they sold the Génova's Headquarters, they, now, are satisfied by the "all of a sudden" strength that has been gaining the PP.

From Old Spanish baron, from Old French baron. Doublet of varón.