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Olivia Wilde's estranged husband Tao Ruspoli is an Italian prince. The two eloped when she was 18 years old and were secretly married in a school bus with only a pair of witnesses.
Their official wedding was held in a castle that he and his family owned in Vignanello, Italy.
(Pictured: Tao Ruspoli appears in a photo from the Marfa Film Festival for his film 'Fix.' / Olivia Wilde appears on the show 'The Insider,' as seen in this fan photo.)
( Photo / flickr.com/photos/tkkate/ / flickr.com/photos/nanpalmero/)