Princess Eugenie's wedding dress designer shares stunning never-before-seen photo of the royal to celebrate her birthday

It was a special weekend for Princess Eugenie, as she celebrated her 29th birthday on Saturday.

And the royal's family and friends were clearly keen to wish the Princess a happy birthday, sharing a sweet array of messages for her on social media.

Eugenie's mother, Sarah Ferguson, was amongst the first to share an adorable public message for her daughter over on her Instagram account.

Fergie shared two photos, one of Eugenie's wedding day, and another of her youngest daughter as a little girl - a photo royal fans have likely never seen before.

Alongside the rare images, she wrote, 'Happy Birthday my darling girl xxx 🥳 @princesseugenie'.

See Sarah's post HERE.

Prince Andrew of course also shared his own birthday message for Eugenie, on his official social media channels. The Duke of York shared an adorable photo collage to celebrate the happy occasion.

Including in the image was a photo of Eugenie soon after she was born, where both Andrew and Sarah can be seen looking adoringly at their new arrival.

Another sweet photo showed the Princess and her father partaking in one of their joint favourite pasttimes when Eugenie was a child, horse-riding.

Other, more recent pictures included Andrew and Eugenie on her 12th October wedding day, and a sweet image of Princess Beatrice, Eugenie, and Sarah all together.

See Prince Andrew's post HERE.

Some of Princess Eugenie's close friends also shared birthday messages too, including none other than one of her wedding dress designers, Zac Posen.

The designer, who counts Eugenie as a close friend, shared a gorgeous, never-before-seen photo of the Princess in her second wedding dress, which she wore for the evening reception - presumably at a fitting with the designer.

Zac shared a touching caption alongside the image, revealing the royal possesses a 'natural elegance, a heart of gold and sophisticated humor.'

He wrote, 'Every now and then you meet somebody who just knocks your socks off. This last year I got to know a young lady who possessed natural elegance, a heart of gold and sophisticated humor.

'My studio and I had the honor (and the best time) collaborating with her on her special gown. Best of all she is dedicated to using her privilege to help our world and its people with her project @the_anti_slavery_collective. Happy Birthday! @princesseugenie ✨'. So sweet!

See Zac's post HERE.

So how did Princess Eugenie celebrate her big day? According to Hello! magazine, she actually hosted a party at Windsor Castle - although it was for a different reason.

Reportedly, Eugenie and her husband Jack Brooksbank held a celebration at the party to give their guests a private viewing of their wedding exhibition, which is currently on display at the castle until 22nd April.

Among the guests were their close friends and family, as well as fashion designer Peter Pilotto, who created Eugenie's famous church wedding gown.

So although the party was held to celebrate their wedding anniversary, six months after the big day, we're sure the guests all raised a glass to Eugenie turning 29 too.