Sarah Ferguson was purposely left off the Royal Wedding guest list last month and she admitted to Oprah Winfrey that the snub left her feeling pretty lousy.

According to E! Online, the infamous Duchess of York, who was once married to Prince Andrew, told Winfrey that being left out of the big day was "so difficult," adding, "I wanted to be there with my girls...to be getting them dressed and to go as a family."

Her daughters, Princesses Eugenie and Beatrice, attended the wedding with their father, and caused quite a stir with their interesting wardrobe choices for the big event.

Ferguson understands why she was not welcome at the royal event, but said it still stung to be an outsider.