Real Club de la Puerta de Hierro (Spanish pronunciation: [ře 'al 'klub de la 'pwer ta ðe 'je řo]), commonly known as Puerta de Hierro, is a private country club based in Madrid, Spain. It owes its name to the nearby iron memorial arch. Notorious for being associated with the royal families of Europe and the long-established elite, American President Gerald Ford called it "the club of kings and the king of clubs".