Royal fans are just figuring out where they've seen Princess Kate's hat before

The put on a Garden Party yesterday (May 20), alongside her husband, donning a pastel ensemble. Princess Kate, , pulled together some of her best yellow staples and curated a stunning look.

The Philip Treacy hat, a sought-after piece in her millinery collection, drew the attention of onlookers. The designer is synonymous with the Royal Family and is renowned for their elegant and distinctive designs. Royal fans took to and pointed out that she poignantly first wore the design at the wedding of y and , back in 2018.

"I love that hat on her; it really shows off her face & hair and is perfect with that dress. The glow is different from when she last wore it at Prince Harry and Meghan's wedding," shared one user. A second added, "I spotted that immediately... and smiled... I wonder that she still got that piece." A third chimed in and suggested that it may have been Princess Kate's, 43, way of making a subtle dig at the Duke and Duchess of Sussex.

Another person mentioned that Prince Harry and Meghan celebrated their seven-year anniversary on Monday - which led to the Duchess posting a selection of unearthed photos on her Instagram account, paying tribute to their love story.

The user wrote: "7-year anniversary was yesterday. Oh, it's Catherine's way of saying. I'm still here. And where are you?"

Although others felt it was just a coincidence and shared, "She's so busy she probably doesn't know it's the same hat; why would she remember?"

The saucer-style headpiece features a pale yellow hue and a collection of round flowers, complemented by a rosette. It's a distinctive and eye-catching, and a timeless sophisticated choice for special occasions.

She paired her hat with a chic long-sleeve crepe dress from Emilia Wickstead - another rewear from her closet and a dress that the Duchess of Edinburgh also owns.

Princess Kate completed her look with a pair of Gianvito Rossi Ribbon slingback pumps in nude colour, along with a trendy woven clutch bag from Forever New.

It was hard to keep your eyes from her sparkling earrings, which featured a unique acorn drop.

She first wore these for her wedding to Prince William, back in 2011. They were commissioned by her parents and designed by a small London jeweller, Robinson Pelham.

Kate also wore the sapphire-and-diamond engagement ring that William, 43, proposed to her with-and which once belonged to