Sarah Ferguson wrote a romance novel after living somewhat of a dramatic tale of her own. The mother of Princess Eugenie and Princess Beatrice has penned numerous books over the years, but her new novel, is something new — and a long time coming. Fergie tells ET's Kevin Frazier that she first had the idea to write romance when she was doing research for the 2009 film , which she produced and which starred Emily Blunt and Rupert Friend.