Kate Middleton wore Queen Elizabeth II’s most hated item again.

The Duchess of Cambridge stepped out on Tuesday to visit the “Back To Nature” festival in Woking, Surrey. She was stunning in her $2,000 floral dress designed by Emilia Wickstead.

She wore her hair in a soft wave with her trademark middle part style. The royal mom of three accessorized with a pair of gold dangling earrings. However, something was wrong with her get-up.

According to Express, Middleton risked experiencing Queen Elizabeth II’s wrath for wearing a pair of wedges. Her Majesty is known for her extreme dislike for the footwear. 

Samantha Leal of Marie Claire described the Queen as a “notorious wedge-hater.” A different source also supported this claim.

“The Queen isn’t a fan of wedged shoes,” an insider told Vanity Fair. “She really doesn’t like them and it’s well known among the women in the family.”

Due to this reason, the women in the royal family stay away from wearing wedges at the presence of the Queen. However, in contrast to the monarch, Middleton is very fond of this type of shoes and has been photographed wearing a pair in different occasions.

Middleton surprised many when she welcomed Queen Elizabeth II at the unveiling of the garden she co-designed at Chelsea Flower Show last May. The Duchess of Cambridge wore a pair of wedge shoes even if she knew that the Queen would be attending the event.

Upon the Queen’s arrival, Prince William and Middleton greeted her with a hug and kiss. According to royal expert Daniel Elser, it was a “breathtakingly big tick of approval” to see Middleton greeting the Queen with such informality.

Meanwhile, some netizens discussed the Queen’s dislike for wedge shoes. According to one online user, the reason could be due to its history.

“The Queen hates wedges, because they remind her of austerity and rationing during the war. One thing that was not rationed was cork, so people used it to make their own shoes, which had to be a wedge shape because the cork was too soft to make a separate sole and heel,” she wrote on Quora.

Queen Elizabeth II and Kate Middleton Kate Middleton and Queen Elizabeth II smile as they visit Vernon Park during a Diamond Jubilee visit to Nottingham on June 13, 2012 in Nottingham, England. Photo: Getty Images/Chris Jackson