Royal Family
Princess Diana and Sarah Ferguson's friendship in never-before-seen photos. Pictured: Prince Andrew, Ferguson, Lord Linley, Prince Edward, Prince Charles, Princess Diana, Queen Mother and Queen Elizabeth II pose outside her London Clarence House on Aug. 4, 1989. Getty Images/Johnny Eggit

Princess Diana and Sarah Ferguson shared a close friendship for years before their fallout, and this was visible in their photos together.

Good Housekeeping compiled several photos of the late Princess of Wales and Duchess of York. In a number of snaps, both were grinning or smiling together, showing how close they were back then.

One photo featured the two sitting on a bench while watching a polo game in Windsor. They were facing each other and giggling while conversing.

In another polo event, Princess Diana and Ferguson were photographed once again involved in an animated conversation. Prince Andrew's ex-wife was talking while the People's Princess couldn't stop herself from grinning.

Princess Diana and Ferguson also enjoyed trips together. The Prince and late Princess of Wales along with the Duke and Duchess of York took holiday ski trips in Klosters, Switzerland. One photo taken in 1987 features the two women staring at each other while smiling. Another shot showed Princess Diana trying to knock Ferguson over without success while they were racing to the bottom of the slope while laughing. After a year, Princess Diana and Ferguson were photographed on another ski trip.

Prince Charles and Prince Andrew's ex-wives were very close. In fact, they reportedly had a divorce pact. Both wanted to live their royal life. However, when Princess Diana saw the difficult Ferguson endured after her divorce from the Duke of York she delayed her decision to end her marriage from the future king.

Unfortunately, Princess Diana and Ferguson had a fallout. They reportedly stopped talking after the duchess claimed that she got a verruca after borrowing the princess' shoes. Princess Diana was upset because Ferguson already promised not to talk about her.

Ferguson tried to contact Princess Diana but to no avail. They haven't talked until the fatal car accident that caused Princess Diana's death.

Ferguson treated Princess Diana as a younger sister. According to her, she tried to "support and protect her as I would a younger sister—as I still do today, as a best friend."

"Diana was one of the quickest wits I knew; nobody made me laugh like she did," Ferguson wrote in her 2011 book "Finding Sarah". "We took vacations together with our children. Sadly, at the end [of the Princess's life] we hadn't spoken for a year, although I never knew the reason, except that once Diana got something in her head it stuck there for a while."