For the first time ever, Princess Beatrice arrived at the lavish nuptials with her boyfriend, Eduardo Mapelli.
"She was having a big moment at that wedding," Daily Mirror Style Director Amber Graafland said while discussing the day on podcast 'Pod Save the Queen.'
And it wasn't just the 30-year-old's handsome new beau which caught the world's attention but her outfit, too.
"It was quite daring," Ms Graafland said of Beatrice's navy blue Self Portrait dress.
"She doesn't always get it right, let's be honest, but she does make some great choices and this was probably one of the best things I've ever seen her wear."
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Ms Graafland continued: "She looked very happy, she looked amazing, it was definitely her time to shine."