The Rothschild family is one of the richest families in the world. They are so rich, that if they decide to close their Swiss accounts, Switzerland would be plunged into a recession. I don’t know this for a fact obviously, but I love quoting Absolutely Fabulous.
The family apparently has enough wealth to leave a home in a prime Paris location rot away. Just 5 miles from the famous Notre Dame, in the Edmond de Rotschild park, is the Chateau Rotschild. Or what once was the chateau. Shrubbery, graffiti and decay have taken over long since.