Royals Did Kate Middleton Pay Tribute to Princess Diana and Queen Elizabeth with Her Remembrance Day Hat? The Duchess of Cambridge choice of a wide-brimmed hat was a departure from her typical style By Stephanie Petit Stephanie Petit Stephanie Petit is a Royals Writer and Reporter at PEOPLE. People Editorial Guidelines Published on November 15, 2021 12:56 PM Share Tweet Pin Email Kate Middleton. Photo: Max Mumby/Indigo/Getty Images Kate Middleton channeled two royal women at Sunday's Remembrance Day service. The mom of three appeared on a balcony above the Cenotaph war memorial for the annual ceremony wearing a wide-brimmed hat (a shape she rarely wears) to top her black ensemble. The look drew comparisons to a similar outfit worn by her late mother-in-law Princess Diana at the same event in 1992. In addition to a comparable headpiece and collared jacket, Kate sported drop pearl earrings and a poppy pin featuring three red flowers, just like Diana. Kate's hat, the Tiffany drop-brim hat from Lock & Co., was also speculated by Elizabeth Holmes, author of HRH: So Many Thoughts on Royal Style, to pay tribute to Queen Elizabeth, whose wide-brimmed hats (which perfectly coordinate with her wide range of colorful outfits) are a staple of her wardrobe. The monarch, 95, made the last-minute decision not to attend Sunday's event after spraining her back, according to the palace. Kate Middleton's Remembrance Service Style: See All Her Hairstyles & Looks from Over the Years Princess Diana in 1992. Shutterstock Kate, 39, has experimented with different head-toppers since her debut at the Remembrance Sunday in 2011. She's mostly worn fascinators for the occasion, sometimes featuring netting covering part of her face, but wore larger hats in both 2016 and 2017. The Duchess of Cambridge didn't have to look far for her outfit choice — just inside her royal closet. The royal, who is known for recycling her favorite ensembles, wore the same military-inspired jacket with a white collar and red detailing on the shoulders by Alexander McQueen (her wedding gown designer!) for the service just three years ago. In 2018, she opted for a black fascinator and stud earrings featuring pearls. Camilla, Queen Elizabeth and Kate Middleton in 2018. Samir Hussein/WireImage On Sunday, the Queen's place on the balcony above the Cenotaph was taken by her cousin, the Duke of Kent, who was accompanied by another of Her Majesty's cousins, Princess Alexandra. On a neighboring balcony stood Kate, flanked on her right by Camilla, Duchess of Cornwall and Sophie, Countess of Wessex, on her left. Prince William, dressed in the uniform of a Squadron Leader of the Royal Air Force, stepped forward to lay a wreath following his father Prince Charles, who laid wreaths on behalf of himself and the Queen. Can't get enough of PEOPLE's Royals coverage? Sign up for our free Royals newsletter to get the latest updates on Kate Middleton, Meghan Markle and more! Kate Middleton. Samir Hussein/WireImage All of the royals sported poppy pins, the artificial flower that has been used since 1921 to commemorate military members who have died in war. The poppy symbol is believed to have come from the poem "In Flanders Fields" by John McCrae, a poem about World War I. The opening stanza reads: In Flanders fields the poppies blowBetween the crosses, row on row,That mark our place; and in the skyThe larks, still bravely singing, flyScarce heard amid the guns below. The tradition of wearing a poppy has been adopted across the U.K. and the countries of the Commonwealth. It is especially poignant on Armistice Day on November 11 to remember the sacrifices of military members. According to the Royal British Legion, who produces poppies in England, Wales and Northern Ireland, "There is no right or wrong way to wear a poppy. It is a matter of personal choice whether an individual chooses to wear a poppy and also how they choose to wear it. The best way to wear a poppy is to wear it with pride."