Éminence grise

An éminence grise (French pronunciation: [eminɑ̃s ɡʁiz]) or gray eminence is a powerful decisionmaker or advisor who operates covertly in a nonpublic or unofficial capacity.

The original French phrase referred to François Leclerc du Tremblay, the right hand man of Cardinal Richelieu, the de facto ruler of France. Leclerc was a member of the Order of Friars Minor Capuchin and wore the gray-colored robe of that Franciscan order, which led them use the familiar nickname the "Grayfriars" in the names of many Franciscan friaries throughout Medieval Europe. The precise color was less significant than its unmistakable contrast with the brilliant red worn by Richelieu as cardinal. The style "Your Eminence" or "His Eminence" is used to address or refer to a cardinal in the Catholic Church. Although Leclerc was never raised to the rank of cardinal, those around him addressed him as "eminence" as if he were one in deference to his close association with "His Eminence the Cardinal Richelieu". Leclerc is referred to in several popular works such as a biography by Aldous Huxley. An 1873 painting by Jean-Léon Gérôme, L'Éminence grise, depicts him descending the grand staircase of the Palais-Royal–originally called the Palais-Cardinal when it was built for Richelieu in the 1630s–engrossed in reading a book as an array of courtiers bow deeply towards him. The painting won the Medal of Honor at the 1874 Paris Salon. Leclerc is referred to in Alexandre Dumas' The Three Musketeers as the character Father Joseph, a powerful associate of Richelieu and one to be feared.