Salma Hayek and François-Henri Pinault

At the pinnacle of our list are Salma Hayek and François-Henri Pinault, who have been together since 2006. François, CEO and chairman of the French luxury goods company Kering, may seem older, but he's only four years old, and Hayek is senior.

After that, meeting her future husband, Salma Hayek told reporters, "It's such a romantic, amazing story," yet she chose not to exploit it to "make myself interesting." The couple's net worth is $7.2 billion.

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