After Princess Diana separated from King Charles in 1992, she began to form a new life for herself away from the royal family. She used her new-found freedom and the huge interest surrounding her as a platform for vital charity work, raising awareness of topics her in-laws shied away from.
And in doing this she met Mohamed Al Fayed, a hugely successful Egyptian businessman often named as one of the richest men in the world at the time. While it's unknown where they first met, their circles would have crossed regularly as he sponsored many of the charities she was involved with.
Their unlikely friendship features heavily in season five of The Crown, showing Mr Al Fayed, played by Salim Daw, growing closer to the royals.