Article continues below advertisementSarah Ferguson's bond with nephew Prince William and Kate Middleton isn't as strong as it used to be.When the Prince and Princess of Wales, both 43, tied the knot in April 2011, Ferguson was not invited, despite her ex-husband Andrew Mountbatten-Windsor and their daughters, Princess Beatrice and Princess Eugenie, attending.Article continues below advertisementSarah Ferguson's 2011 Interview With Oprah Winfrey Has Resurfaced Source: MEGASarah Ferguson and the former Prince Andrew married in 1986 but divorced 10 years later.