Spain's Duchess of Alba -- Marge Simpson's Sister?

Here is Spain's Doña María del Rosario Cayetana Fitz-James Stuart y Silva, 18th Duchess of Alba, 85, in Madrid the other day (left) -- and Marge Simpson's sister Selma Bouvier-Terwilliger-Hutz-McClure-Stu-Simpson-D'Amico on "The Simpsons" (right).

One is quite the character.