Princess Eugenie will today be toasting her third wedding anniversary with her husband Jack Brooksbank.
The pair married in a grand ceremony at St George's Chapel in Windsor in 2018 with her varied guest list including her grandmother the Queen, supermodel Cara Delevigne and singer Robbie Williams.
In fact, more than 850 people packed into the chapel exactly three years ago to see Eugenie and Jack exchange their vows.
But if you look closely enough at pictures from the day you can see one prime seat at the front of the chapel in front of the Queen was left empty.
However, it wasn't down to a no-show on the big day - it is actually down to the Queen herself.
That's because traditionally the Queen and the rest of the royals sit on the right-hand-side of the quire in St George's Chapel.
Her Majesty is said to prefer to sit in the second row of seats, as, according to The Sun, she finds the front row uncomfortable.
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And with tradition dictating that no one is allowed to sit in front of the Queen and obstruct her view - this is why the seat was left empty.
The same seat was also left empty months earlier when Prince Harry and Meghan Markle married in the same chapel.
However, there was actually a member of the royal family missing on Eugenie's wedding day - the Duchess of Cornwall.
Instead, she attended a school harvest festival in Scotland, which she had agreed to make an appearance at before Eugenie's wedding date had been confirmed.
Since marrying in 2018, Eugenie and Jack have moved into Frogmore Cottage in Windsor and earlier this year welcomed their first child - a son called August Philip.
And in a sweet moment in a documentary that aired last month honouring Eugenie's late grandfather Prince Philip, she revealed young August got to meet his great-grandfather shortly before his death in April.
August was born on February 9 this year and holding back the tears, Eugenie explained: "We named August, August Philip because grandpa has been such a huge, inspiring character in my life.
"I brought little August to come and meet him and told him that we had named him after him and it was such a lovely moment.
"We were very lucky to do that."
Last month, Eugenie also became an aunt for the first time after her sister Princess Beatrice gave birth to a daughter she named Sienna Elizabeth.
