José Luis de Vilallonga y Cabeza de Vaca, 9th Marquess of Castellbell, GE was a Spanish nobleman, author, socialite and film actor. His peculiar character, described as "a mixture of aristocratic arrogance, self-confidence and unconcern", brought him frequent enmities with other public figures. He was known to be a multifaceted, charming, elegant and playboy-like figure. At his death in 2007, Vilallonga was referred to by several newspapers as "the last dandy".

Alfonso Cabeza de Vaca y Leighton, 11th Marquess of Portago, GE, best known as Alfonso de Portago, was a Spanish aristocrat, racing and bobsleigh driver, jockey and pilot.