Sometimes truth really is stranger than fiction. About an hour and a half outside of Madrid is one of the world’s most exclusive and unique places to stay. It’s the family estate of a CIA agent who fell in love with a Spanish count around the time of World War II. Even after she became a member of the Spanish aristocracy, the countess de Romanones took on odd jobs for the CIA now and again. She eventually detailed her “fictional” adventures in books that made the bestseller lists. Being a guest on her 12th-century estate means following in the footsteps of the illustrious. Notables from Jaqueline Kennedy to the Rothschilds and modern-day billionaires are the average clientele. Here’s how one of the most fascinating women in the world lived.