Crichton-Stuart, please! In his racing days he was Earl of Dumfries. He didn't inherit the Marquis of Bute title until the 1990s
Or more correctly Don Alfonso Antonio Vicente Blas Ángel Francisco Borgia Cabeza de Vaca y Leighton Carvajal y Are, Conde de Mejorada, seventh Marquis de PortagoAlfonzo de Portago = Don Alfonso Cabeza de Vacade y Leighton