Royals Every Photo of William, Kate, Harry and Meghan's Emotional Reunion Outside Windsor Castle Prince William and Kate Middleton asked Prince Harry and Meghan Markle to join them as they met the public and viewed tributes to the late Queen Elizabeth outside Windsor Castle on Saturday By Angela Andaloro Angela Andaloro Twitter Angela Andaloro is a Parents News Writer at PEOPLE. Angela has also written about entertainment and parenting at LittleThings, Mom.com, BuzzFeed, and more. In her spare time, she enjoys competing in fantasy sports leagues and watching too much reality TV. People Editorial Guidelines and Kate Hogan Published on September 10, 2022 01:49 PM Share Tweet Pin Email Trending Videos 01 of 28 The Fab Four, Back Together From left: Kate Middleton, Prince William, Prince Harry and Meghan Markle. James Whatling / MEGA Crowds outside of Windsor Castle on Saturday were pleasantly surprised to see Prince William and Kate Middleton joined by by Prince Harry and Meghan Markle on their walkthrough of tributes. 02 of 28 Brothers United Prince William and Prince Harry. James Whatling / MEGA The newly minted Prince of Wales personally invited the Duke and Duchess of Sussex to join as they met with members of the public at the entrance to Windsor Castle. 03 of 28 In Mourning Meghan Markle and Prince Harry. Alberto Pezzali/AP/Shutterstock Both couples took time to look at the tributes and talk with mourners who lined the castle entrance. 04 of 28 Dressed for the Occasion Kate Middleton, Prince William, Prince Harry and Meghan Markle. Chris Jackson - WPA Pool/Getty All four were dressed in black and navy as they stopped and spoke with children and adults of all ages who made up the tremendous crowd. 05 of 28 Animated Chatter Alberto Pezzali/AP/Shutterstock Prince William thought the walkabout to greet the crowds "was an important show of unity at an incredibly difficult time for the family," a royal source told PEOPLE. 06 of 28 Step Together Kate Middleton and Prince William. KIRSTY O'CONNOR/POOL/AFP via Getty The Prince and Princess of Wales were in step, as usual. 07 of 28 Taking a Look Alberto Pezzali/AP/Shutterstock Kate and William recently moved to Windsor, making them a short distance from Harry and Meghan's U.K. home, Frogmore Cottage, which is on the Queen's Windsor Castle estate. Meghan and Harry, who moved to California in 2020, are expected to remain in the U.K. until the Queen's funeral, which will take place on Sept. 19. 08 of 28 Unending Tributes Alberto Pezzali/AP/Shutterstock Crowds of people have flocked to the castle since news of the Queen's death was announced on Thursday, leaving flowers, flags and memories. 09 of 28 Poignant Moment Prince William, Kate Middleton, Prince Harry and Meghan Markle at Windsor Castle. Kirsty O'Connor/AP/Shutterstock The reunion among William, Kate, Harry and Meghan was poignant, as relations have been strained between the Duke and Duchess of Sussex and members of the royal family in recent years, including an ongoing estrangement from William and Kate. 10 of 28 Finding Comfort Martin Meissner/AP/Shutterstock Meghan offered Harry an embrace as he took in the tributes to his grandmother. 11 of 28 Complete Surprise Alberto Pezzali/AP/Shutterstock A source told PEOPLE that security was not expecting both couples at the walkabout. 12 of 28 Quiet Time Jason Dawson/nunn-syndication.com The four took a minute to themselves, together. 13 of 28 Good Greet Mirrorpix / MEGA Individually, Meghan, Harry, William and Kate spoke to people gathered outside the castle. 14 of 28 Listening In Prince Harry and Meghan Markle. Mirrorpix / MEGA Together, Harry and Meghan listened to stories, memories and well wishes. 15 of 28 Hugs to Help Meghan Markle. KIRSTY O'CONNOR/POOL/AFP via Getty Meghan shared a long embrace with an admirer. 16 of 28 A Slight Change John Rainford / SplashNews.com Kate also accepted hugs from strangers, a move the royals don't often do. 17 of 28 Carrying On Kirsty O'Connor/WPA-Pool/MEGA Meghan's arms filled with flowers from those there to mourn. 18 of 28 Roses and Thorns Prince William and Kate Middleton in Windsor after the Queen's death. Chris Jackson - WPA Pool/Getty Kate received flowers from well-wishers, too. 19 of 28 The Prince Prince William at Windsor Castle. Chris Jackson - WPA Pool/Getty Now first in line to the throne, William performed his royal duties. 20 of 28 Prince and Princess Prince William and Catherine, Princess of Wales. CHRIS JACKSON/POOL/AFP via Getty Will leaned in to listen as Kate spoke to him. 21 of 28 On Eye Level Pool/i-Images via ZUMA Press Meghan got down to greet small mourners ... 22 of 28 Rising Above Meghan Markle. Chris Jackson - WPA Pool/Getty ... and reached up to shake hands with those on parents' shoulders. 23 of 28 'An Amazing Moment' Meghan Markle. Kirsty O'Connor - WPA Pool/Getty One teen who connected with Meghan spoke to CNN about their moment together. "We were just waiting for her to come, and she just came near me and asked my name, and how my day was, how long I as waiting," the 14-year-old girl said of the moment. "I asked if she could have a hug, and she hugged me back. It was just quite an amazing moment. I'm still shaking now." 24 of 28 'She's Welcome Here' Meghan Markle. Chris Jackson - WPA Pool/Getty "It was quite nice to see William and Kate and Meghan and Harry together," the teen continued. "I just wanted to show her that she's welcome here and wanted to hug her after everything that's happened." 25 of 28 Happy Memories Chris Jackson - WPA Pool/Getty "It's a lonely place up there now without her," Harry told well-wishers, pointing to Windsor Castle, in a video shared by The Sun. "Whichever room she was in, you felt her presence throughout," he added with a smile. 26 of 28 With Love Prince Harry, Meghan Markle, Prince William and Kate Middleton. Chris Jackson - WPA Pool/Getty While speaking to kids outside Windsor Castle on Saturday, Kate said that 4-year-old son Prince Louis told her, "At least Grannie is with Great-Grandpa now," according to The Sunday Times' royals editor, Roya Nikkhah. 27 of 28 The Queen's Influence Chris Jackson - WPA Pool/Getty The crowd outside Windsor was dozens deep. 28 of 28 Ups and Downs CHRIS JACKSON/POOL/AFP via Getty Despite the weight of the day, the foursome sported smiles as they departed.