Royals Kate Middleton and Prince William Step Out Following Queen's Funeral to Thank Staff and Volunteers The Prince and Princess of Wales visited Windsor Castle on Thursday to meet volunteers and staff involved in facilitating the Queen's committal serviceByStephanie PetitStephanie PetitStephanie 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 GuidelinesPublished on September 22, 2022 07:54 AM Share Tweet Pin Email Kate Middleton and Prince William are showing their appreciation to the people who helped facilitate Queen Elizabeth's committal service. Three days after the history-making monarch was laid to rest, the Prince and Princess of Wales, both 40, met volunteers and operational staff who were involved in the committal service for the Queen at St. George's Chapel in Windsor Castle on Monday. They also supported the crowds that gathered to pay tribute to Queen Elizabeth after her death on September 8. Queen Elizabeth relocated her home base from Buckingham Palace to Windsor Castle amid the coronavirus pandemic in 2020. She spent most of her final years at the royal residence, although she died at her traditional summer getaway in Scotland, Balmoral Castle. How the Royal Family Came Together amid Tensions to Honor Queen Elizabeth: 'Everyone Was Hurting'Kate Middleton and Prince William.Mark Cuthbert/UK Press via Getty The Queen's loyal personal staff "are devastated" by her death, a close source told PEOPLE. "They are incandescent with grief," the insider says. "However much you are prepared for it, after a lifetime of service, it was still a terrible shock." After 2,000 people — including royals and world leaders from around the world — gathered at Westminster Abbey in London for the Queen's state funeral on Monday morning, a smaller ceremony was held at her burial place. Kate Middleton.Ian Vogler-WPA Pool/Getty Around 800 people attended the Queen's committal service, with the event having a more intimate feel than the state funeral. The pews will be filled with some of the people who knew the Queen best — in addition to members of the family, the congregation was made up of past and present members of the Queen's Household, including from the private estates. Also in attendance were governors-general and prime ministers from Commonwealth nations. Later on Monday, Queen Elizabeth was laid to rest in the King George VI Memorial Chapel alongside husband Prince Philip, father King George VI, mother Queen Elizabeth the Queen Mother and sister Princess Margaret. Prince William and Kate Middleton.Ian Vogler-WPA Pool/GettyCan'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!Prince William.Mark Cuthbert/UK Press via Getty Two days after the Queen's death, Prince William and Kate stepped out at Windsor to view the flowers, notes and other tributes left at the residence by members of the public alongside Prince Harry and Meghan Markle. In a video shared via TikTok and Instagram, Kate told a well-wisher, "It's very strange being here without Her Majesty," referring to Windsor Castle.