The Crown perfectly replicated Princess Diana's look for her engagement portraits with then Prince Charles. Actress Emma Corrin, who played the "People's Princess"during season 4, wore a blue suit ...

The Norwegian royal, 21, joined her parents, Crown Prince Haakon and Crown Princess Mette-Marit, both 51, at the white-tie soiree at the Royal Palace in Oslo as King Harald and Queen Sonja hosted ...

Credit: Getty Images The blue dress Diana wore in her announcement ... The rest of the outfits Emma Corrin wears as Princess Diana in Season 4 of The Crown are either not based on real dresses ...