Royals Kate Middleton, Princess Diana and More Royals in Costume to Put You in the Halloween Spirit The royals can't resist dressing up on festive occasions! By Stephanie Petit Stephanie Petit Stephanie Petit is a Royals Writer/Reporter at PEOPLE. She has been with the brand since 2016 after graduating from The College of New Jersey and holding previous positions at Seventeen, CBS Radio and more. Follow the proud dog mom on Twitter at @stephpetit_ for the latest on Queen Elizabeth's corgis. People Editorial Guidelines Updated on October 26, 2021 01:15 PM Share Tweet Pin Email Trending Videos Photo: Dave Benett/Getty; Anwar Hussein/Getty; BAUER-GRIFFIN 01 of 13 Kate Middleton in 2007 Kate Middleton. BAUER-GRIFFIN Before Kate Middleton became the Duchess of Cambridge (now Princess of Wales), she was just another 20-something heading out to celebrate Halloween. She spent the holiday in 2007 attending a party with her younger sister, Pippa Middleton. She wore a black dress paired with a cape, fishnet stockings and boots, making her a spooky character (or, perhaps, a bewitching witch?) for the night out. 02 of 13 Prince Harry in 2003 Prince Harry. KIRSTY WIGGLESWORTH/AFP via Getty In 2003, Prince Harry played dress up for an Eton College production of Much Ado About Nothing. 03 of 13 Princess Beatrice in 2018 Dave Benett/Getty Queen Elizabeth's granddaughter sported a purple wig and whimsical unicorn horn in 2018 for a Halloween costume party at Annabel's in London. 04 of 13 Queen Elizabeth and Princess Margaret in the 1940s Queen Elizabeth and Princess Margaret. Toronto Star Archives/Toronto Star via Getty Images The Queen, then Princess Elizabeth, and her sister put on their fancy dress for World War II-era Christmas plays at Windsor Castle. The series of pantomimes from 1941 through 1944 raised money for the Royal Household Wool Fund, which supplied knitting wool to make comforters for soldiers. 05 of 13 Prince Charles and Princess Diana in 1983 Anwar Hussein/Getty King Charles III (known then as Prince Charles) and Princess Diana sported traditional Klondike outfits to attend a Klondike evening barbeque during a 1983 visit to Canada. 06 of 13 Prince Andrew and Sarah Ferguson in 1987 Prince Andrew & Sarah Ferguson. Georges De Keerle/Getty Prince Andrew and Sarah "Fergie" Ferguson also got dressed up during a visit to Canada in 1987. 07 of 13 Prince William in 1987 Prince William. Tim Graham Photo Library via Getty A young Prince William rocked a mask that he made at school. 08 of 13 Princess Beatrice in 2016 Princess Beatrice. Eamonn M. McCormack/Getty Princess Beatrice stepped out with a fanciful cat mask and white wig for the annual UNICEF U.K. Halloween Ball in 2016. 09 of 13 Prince Harry in 1987 Prince Harry. Tim Graham Photo Library via Getty Prince Harry got in the Christmas spirit by dressing up in a red and green ensemble for his school's nativity play. 10 of 13 Princess Madeleine of Sweden and family in 2020 Princess Madeleine of Sweden and her kids. Princess Madeleine of Sweden/Instagram Princess Madeleine of Sweden and her family had fun in their costumes. The royal mom went as a classic black cat, while Princess Adrienne made an adorable pumpkin on her first Halloween. Prince Nicolas dressed up as Batman, complete with a cape and black mask painted around his eyes, and Princess Leonore was all smiles as a colorful mermaid. 11 of 13 Camille Gottlieb in 2016 Camille Gottlieb. Camille Gottlieb/Instagram Grace Kelly's granddaughter went the spooky route in 2016, dressing up as Jigsaw from the Saw movies. "Let play a game," she captioned her photo on Instagram. 12 of 13 Princess Leonore of Sweden in 2015 Princess Leonore. Princess Madeleine of Sweden/Facebook Princess Leonore made an adorable ladybug for a portrait shared by mom Princess Madeleine in 2015. 13 of 13 Prince Harry and Meghan Markle in 2018 Prince Harry and Meghan Markle. Dominic Lipinski - Pool/Getty Although they didn't dress up as themselves, Prince Harry and Meghan Markle were surrounded by amazing costumes during their tour of New Zealand in 2018.