Each year, the Royal Family come together to celebrate the Queen's birthday with the extravagant Trooping the Colour, which sees an array of events carried out for the monarch's birthday. Normally, the day is known for events such as an RAF flypast and the Royal Family all taking to the Buckingham Palace balcony to wave to the public gathered outside Her Majesty's residence. However, this year due to the coronavirus pandemic the celebrations will be much more low key.
But last year, Princess Eugenie marked the momentous occasion by writing an adorable update regarding her grandmother.
On Instagram she wrote: "What a special day to celebrate a Birthday. Happy Birthday Your Majesty!
"Today was Trooping the Colour. A celebration that has marked the official birthday of the sovereign for over 260 years.
"This is Granny's 69th time and Jack and I were honoured to be able to celebrate together for the first time."
Her update was shared with her thousands of Instagram followers, and sparked a frenzy of people liking and commenting on the post.
One wrote "Beautiful family. I'm so proud of all the Royal Family."
Another said: "Hail, hail the gangs all here."
The post was accompanied by a picture of the Royal Family all looking to the skies as the RAF flew over Buckingham Palace.
JUST IN: Royal revolution: How Kate has transformed during lockdown
The Queen takes centre stage in the snap, surrounded by her sons Prince Charles and Prince Andrew, as well as daughter Princess Anne.
Last year's event was the first that included newly married couples Meghan Markle and Prince Harry, and Princess Eugenie and Jack Brooksbank.
Both couples were married in 2018, much to the delight of royal fans across the globe.
Princess Eugenie and the Queen enjoy a colourful relationship, with Her Majesty even seemingly upstaging her granddaughter on her special day in October 2018.
Queen leads by example and avoids public transports for engagement (LATEST)
Prince Charles heartbreak: Prince issues emotional tribute to teachers (UPDATE)
Prince Andrew faces quizzing over Epstein as US makes request to UK (ANALYSIS)
Writing at the time, BBC correspondent Jonny Dymond said: "The focus of the day was of course on the couple; an unsurprisingly nervous groom, his hand shaking at times, his gaze twitching as he waited for his bride; a beaming princess, unable to control her joy.
"There was more; flawless organisation, hat dysfunction as the wind blew and blew, hatchets buried as the Duke of Edinburgh settled into a seat near Sarah, Duchess of York, with whom he has had a frosty - sometimes frozen - relationship.
"But most noticeable at Windsor? The applause that followed the national anthem and the cheers for the Queen as she left the chapel. No one eclipses the Queen in the affections of the British public."
Eugenie and Jack's wedding was witnessed by an average audience of around three million people on ITV, with the BBC opting not to broadcast the ceremony live.