01of 28

The Fab Four, Back Together

From left: Kate Middleton, Prince William, Prince Harry and Meghan Markle.James Whatling / MEGA

The Prince and Princess of Wales view the tributes left after the Death of Queen Elizabeth II, at Windsor Castle, Windsor, Berkshire, UK, on the 10th September 2022. 10 Sep 2022 Pictured: The Prince and Princess of Wales view the tributes left after the Death of Queen Elizabeth II, at Windsor Castle, Windsor, Berkshire, UK, on the 10th September 2022. Photo credit: James Whatling / MEGA TheMegaAgency.com +1 888 505 6342

02of 28Brothers UnitedPrince William and Prince Harry.James Whatling / MEGAThe newly minted Prince of Walespersonally invitedtheDukeandDuchess of Sussexto join as they met with members of the public at the entrance to Windsor Castle.

02of 28

Brothers United

Prince William and Prince Harry.James Whatling / MEGA

The Prince and Princess of Wales view the tributes at Windsor

The newly minted Prince of Walespersonally invitedtheDukeandDuchess of Sussexto join as they met with members of the public at the entrance to Windsor Castle.

03of 28In MourningMeghan Markle and Prince Harry.Alberto Pezzali/AP/ShutterstockBoth couples took time to look at the tributes and talk with mourners who lined the castle entrance.

03of 28

In Mourning

Meghan Markle and Prince Harry.Alberto Pezzali/AP/Shutterstock

Mandatory Credit: Photo by Alberto Pezzali/AP/Shutterstock (13381171a) Britain’s Prince Harry and Meghan, Duchess of Sussex view the floral tributes for the late Queen Elizabeth II outside Windsor Castle, in Windsor, England Royals, Windsor, United Kingdom - 10 Sep 2022

Both couples took time to look at the tributes and talk with mourners who lined the castle entrance.

04of 28Dressed for the OccasionKate Middleton, Prince William, Prince Harry and Meghan Markle.Chris Jackson - WPA Pool/GettyAll 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.

04of 28

Dressed for the Occasion

Kate Middleton, Prince William, Prince Harry and Meghan Markle.Chris Jackson - WPA Pool/Getty

WINDSOR, ENGLAND - SEPTEMBER 10: Catherine, Princess of Wales, Prince William, Prince of Wales, Prince Harry, Duke of Sussex, and Meghan, Duchess of Sussex on the long Walk at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

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.

05of 28Animated ChatterAlberto Pezzali/AP/ShutterstockPrince Williamthought 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.

05of 28

Animated Chatter

Alberto Pezzali/AP/Shutterstock

Mandatory Credit: Photo by Alberto Pezzali/AP/Shutterstock (13381171b) Britain’s Prince William and Kate, Princess of Wales, left, and Britain’s Prince Harry and Meghan, Duchess of Sussex walk to greet the crowds after viewing the floral tributes for the late Queen Elizabeth II outside Windsor Castle, in Windsor, England Royals, Windsor, United Kingdom - 10 Sep 2022

Prince Williamthought 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.

06of 28Step TogetherKate Middleton and Prince William.KIRSTY O’CONNOR/POOL/AFP via GettyThe Prince and Princess of Wales were in step, as usual.

06of 28

Step Together

Kate Middleton and Prince William.KIRSTY O’CONNOR/POOL/AFP via Getty

(L-R) Britain’s Catherine, Princess of Wales, Britain’s Prince William, Prince of Wales on the long Walk at Windsor Castle on September 10, 2022, before meeting well-wishers. - King Charles III pledged to follow his mother’s example of “lifelong service” in his inaugural address to Britain and the Commonwealth on Friday, after ascending to the throne following the death of Queen Elizabeth II on September 8. (Photo by Kirsty O’Connor / POOL / AFP) (Photo by KIRSTY O’CONNOR/POOL/AFP via Getty Images)

The Prince and Princess of Wales were in step, as usual.

07of 28Taking a LookAlberto Pezzali/AP/ShutterstockKate 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 theQueen’s funeral, which will take place on Sept. 19.

07of 28

Taking a Look

Mandatory Credit: Photo by Alberto Pezzali/AP/Shutterstock (13381171d) Britain’s Prince William and Kate, Princess of Wales, left, and Britain’s Prince Harry and Meghan, Duchess of Sussex walk to greet the crowds after viewing the floral tributes for the late Queen Elizabeth II outside Windsor Castle, in Windsor, England Royals, Windsor, United Kingdom - 10 Sep 2022

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 theQueen’s funeral, which will take place on Sept. 19.

08of 28Unending TributesAlberto Pezzali/AP/ShutterstockCrowds of people have flocked to the castle since news of theQueen’s deathwas announced on Thursday, leaving flowers, flags and memories.

08of 28

Unending Tributes

Mandatory Credit: Photo by Alberto Pezzali/AP/Shutterstock (13381171c) Britain’s Prince William and Kate, Princess of Wales, left, and Britain’s Prince Harry and Meghan, Duchess of Sussex view the floral tributes for the late Queen Elizabeth II outside Windsor Castle, in Windsor, England Royals, Windsor, United Kingdom - 10 Sep 2022

Crowds of people have flocked to the castle since news of theQueen’s deathwas announced on Thursday, leaving flowers, flags and memories.

09of 28Poignant MomentPrince William, Kate Middleton, Prince Harry and Meghan Markle at Windsor Castle.Kirsty O’Connor/AP/ShutterstockThe 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.

09of 28

Poignant Moment

Prince William, Kate Middleton, Prince Harry and Meghan Markle at Windsor Castle.Kirsty O’Connor/AP/Shutterstock

Mandatory Credit: Photo by Kirsty O’Connor/AP/Shutterstock (13381259a) From left, Kate, the Princess of Wales, Prince William, Prince of Wales, Prince Harry and Meghan, Duchess of Sussex walk to meet members of the public at Windsor Castle, following the death of Queen Elizabeth II on Thursday, in Windsor, England Royals, Windsor, United Kingdom - 10 Sep 2022

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.

10of 28Finding ComfortMartin Meissner/AP/ShutterstockMeghan offered Harry an embrace as he took in the tributes to his grandmother.

10of 28

Finding Comfort

Martin Meissner/AP/Shutterstock

Mandatory Credit: Photo by Martin Meissner/AP/Shutterstock (13381245g) Britain’s Prince William, second left, and Kate, Princess of Wales, left and Britain’s Prince Harry, right, and Meghan, Duchess of Sussex view the floral tributes for the late Queen Elizabeth II outside Windsor Castle, in Windsor, England Royals, Windsor, United Kingdom - 10 Sep 2022

Meghan offered Harry an embrace as he took in the tributes to his grandmother.

11of 28Complete SurpriseAlberto Pezzali/AP/ShutterstockA source told PEOPLE that security was not expecting both couples at the walkabout.

11of 28

Complete Surprise

Mandatory Credit: Photo by Alberto Pezzali/AP/Shutterstock (13381171l) Britain’s Prince William and Kate, Princess of Wales, left, and Britain’s Prince Harry and Meghan, Duchess of Sussex walk to greet the crowds after viewing the floral tributes for the late Queen Elizabeth II outside Windsor Castle, in Windsor, England Royals, Windsor, United Kingdom - 10 Sep 2022

A source told PEOPLE that security was not expecting both couples at the walkabout.

12of 28Quiet TimeJason Dawson/nunn-syndication.comThe four took a minute to themselves, together.

12of 28

Quiet Time

Jason Dawson/nunn-syndication.com

TRH The Prince & Princess of Wales, Prince William & Princess Catherine with Pince Harry & Meghan Markle, The Duke & Duchess of Sussesx to view flowers and well wishes at Windsor Castle, Windsor. © Jason Dawson Distributed by nunn-syndication.com

The four took a minute to themselves, together.

13of 28Good GreetMirrorpix / MEGAIndividually, Meghan, Harry, William and Kate spoke to people gathered outside the castle.

13of 28

Good Greet

Mirrorpix / MEGA

Britain’s William, Prince of Wales, Catherine, Princess of Wales, Britain’s Prince Harry and Meghan, the Duchess of Sussex, look at floral tributes as they walk outside Windsor Castle, following the death of Britain’s Queen Elizabeth II , in Windsor, Britain, September 10, 2022. 10 Sep 2022 Pictured: Britain’s William, Prince of Wales, Catherine, Princess of Wales, Britain’s Prince Harry and Meghan, the Duchess of Sussex, look at floral tributes as they walk outside Windsor Castle, following the death of Britain’s Queen Elizabeth II , in Windsor, Britain, September 10, 2022. Photo credit: Mirrorpix / MEGA TheMegaAgency.com +1 888 505 6342

Individually, Meghan, Harry, William and Kate spoke to people gathered outside the castle.

14of 28Listening InPrince Harry and Meghan Markle.Mirrorpix / MEGATogether, Harry and Meghan listened to stories, memories and well wishes.

14of 28

Listening In

Prince Harry and Meghan Markle.Mirrorpix / MEGA

Britain’s William, Prince of Wales, Catherine, Princess of Wales, Britain’s Prince Harry and Meghan, the Duchess of Sussex, look at floral tributes as they walk outside Windsor Castle, following the death of Britain’s Queen Elizabeth II , in Windsor, Britain, September 10, 2022. 10 Sep 2022 Pictured: Britain’s William, Prince of Wales, Catherine, Princess of Wales, Britain’s Prince Harry and Meghan, the Duchess of Sussex, look at floral tributes as they walk outside Windsor Castle, following the death of Britain’s Queen Elizabeth II , in Windsor, Britain, September 10, 2022. Photo credit: Mirrorpix / MEGA TheMegaAgency.com +1 888 505 6342

Together, Harry and Meghan listened to stories, memories and well wishes.

15of 28Hugs to HelpMeghan Markle.KIRSTY O’CONNOR/POOL/AFP via GettyMeghan shared a long embrace with an admirer.

15of 28

Hugs to Help

Meghan Markle.KIRSTY O’CONNOR/POOL/AFP via Getty

Meghan, Duchess of Sussex receives a hug from a wellwisher on the Long walk at Windsor Castle on September 10, 2022, two days after the death of Britain’s Queen Elizabeth II at the age of 96. - King Charles III pledged to follow his mother’s example of “lifelong service” in his inaugural address to Britain and the Commonwealth on Friday, after ascending to the throne following the death of Queen Elizabeth II on September 8. (Photo by Kirsty O’Connor / POOL / AFP) (Photo by KIRSTY O’CONNOR/POOL/AFP via Getty Images)

Meghan shared a long embrace with an admirer.

16of 28A Slight ChangeJohn Rainford / SplashNews.comKate also accepted hugs from strangers, a move the royals don’t often do.

16of 28

A Slight Change

John Rainford / SplashNews.com

<em>NO UK PRINT OR WEB USE</em> The Prince amd Princess of Wales, accompanied by The Duke and Duchess of Sussex look at the floral tributes left at Windsor Castle. After looking at the flowers the two Royal couples met well-wishers on the Long Walk. Pictured: Catherine Princess of Wales,Catherine Duchess of Cambridge and Cornwall,Catherine Middleton,Kate Middleton Ref: SPL5473326 100922 NON-EXCLUSIVE Picture by: John Rainford / SplashNews.com Splash News and Pictures USA: +1 310-525-5808 London: +44 (0)20 8126 1009 Berlin: +49 175 3764 166 photodesk@splashnews.com World Rights, No United Kingdom Rights

Kate also accepted hugs from strangers, a move the royals don’t often do.

17of 28Carrying OnKirsty O’Connor/WPA-Pool/MEGAMeghan’s arms filled with flowers from those there to mourn.

17of 28

Carrying On

Kirsty O’Connor/WPA-Pool/MEGA

The Duke of Sussex, Duchess of Sussex, Prince Harry and Meghan Markle and Prince of Wales and Princess of Wales meeting members of the public at Windsor Castle in Berkshire following the death of Queen Elizabeth II on Thursday. 10 Sep 2022 Pictured: The Duke of Sussex, Duchess of Sussex, Prince of Wales and Princess of Wales. Photo credit: Kirsty O&rsquo;Connor/WPA-Pool/MEGA TheMegaAgency.com +1 888 505 6342

Meghan’s arms filled with flowers from those there to mourn.

18of 28Roses and ThornsPrince William and Kate Middleton in Windsor after the Queen’s death.Chris Jackson - WPA Pool/GettyKate received flowers from well-wishers, too.

18of 28

Roses and Thorns

Prince William and Kate Middleton in Windsor after the Queen’s death.Chris Jackson - WPA Pool/Getty

WINDSOR, ENGLAND - SEPTEMBER 10: Prince William, Prince of Wales and Catherine, Princess of Wales speak with members of the public on the Long walk at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

Kate received flowers from well-wishers, too.

19of 28The PrincePrince William at Windsor Castle.Chris Jackson - WPA Pool/GettyNow first in line to the throne, William performed his royal duties.

19of 28

The Prince

Prince William at Windsor Castle.Chris Jackson - WPA Pool/Getty

WINDSOR, ENGLAND - SEPTEMBER 10: Prince William, Prince of Wales shakes hands with members of the public on the Long walk at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

Now first in line to the throne, William performed his royal duties.

20of 28Prince and PrincessPrince William and Catherine, Princess of Wales.CHRIS JACKSON/POOL/AFP via GettyWill leaned in to listen as Kate spoke to him.

20of 28

Prince and Princess

Prince William and Catherine, Princess of Wales.CHRIS JACKSON/POOL/AFP via Getty

Britain&rsquo;s Prince William, Prince of Wales, (L) and his wife Britain&rsquo;s Catherine, Princess of Wales, look at floral tributes laid by members of the public on the Long walk at Windsor Castle on September 10, 2022 before meeting well-wishers. - King Charles III pledged to follow his mother&rsquo;s example of &ldquo;lifelong service&rdquo; in his inaugural address to Britain and the Commonwealth, after ascending to the throne following the death of Queen Elizabeth II on September 8. (Photo by Chris Jackson / POOL / AFP) (Photo by CHRIS JACKSON/POOL/AFP via Getty Images)

Will leaned in to listen as Kate spoke to him.

21of 28On Eye LevelPool/i-Images via ZUMA PressMeghan got down to greet small mourners …

21of 28

On Eye Level

Pool/i-Images via ZUMA Press

September 10, 2022, Windsor, London, United Kingdom: William , Prince of Wales and Catherine, Princess of Wales , ( William and Kate Middleton ) together with Prince Harry and Meghan Markle , the Duke and Duchess of Sussex, look at the floral tributes at Windsor Castle following the death of Queen Elizabeth II (Credit Image: © Pool/i-Images via ZUMA Press)

Meghan got down to greet small mourners …

22of 28Rising AboveMeghan Markle.Chris Jackson - WPA Pool/Getty… and reached up to shake hands with those on parents' shoulders.

22of 28

Rising Above

Meghan Markle.Chris Jackson - WPA Pool/Getty

WINDSOR, ENGLAND - SEPTEMBER 10: Meghan Duchess of Sussex speaks with well-wishers at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

… and reached up to shake hands with those on parents' shoulders.

23of 28’An Amazing Moment’Meghan Markle.Kirsty O’Connor - WPA Pool/GettyOne 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 girlsaid 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.”

23of 28

‘An Amazing Moment’

Meghan Markle.Kirsty O’Connor - WPA Pool/Getty

WINDSOR, ENGLAND - SEPTEMBER 10: Meghan, Duchess of Sussex meet members of the public at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Kirsty O&rsquo;Connor - WPA Pool/Getty Images)

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 girlsaid 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.”

24of 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.”

24of 28

‘She’s Welcome Here’

WINDSOR, ENGLAND - SEPTEMBER 10: Meghan Duchess of Sussex speaks with well-wishers at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

“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.”

25of 28

Happy Memories

Chris Jackson - WPA Pool/Getty

WINDSOR, ENGLAND - SEPTEMBER 10: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex speak with members of the public at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

26of 28With LovePrince Harry, Meghan Markle, Prince William and Kate Middleton.Chris Jackson - WPA Pool/GettyWhile speaking to kidsoutside Windsor Castle on Saturday, Kate said that 4-year-old sonPrince Louistold her, “At least Grannie is with Great-Grandpa now,” according toThe Sunday Times' royals editor,Roya Nikkhah.

26of 28

With Love

Prince Harry, Meghan Markle, Prince William and Kate Middleton.Chris Jackson - WPA Pool/Getty

WINDSOR, ENGLAND - SEPTEMBER 10: Prince Harry, Duke of Sussex, Meghan, Duchess of Sussex, Prince William, Prince of Wales and Catherine, Princess of Wales look at floral tributes laid by members of the public on the Long walk at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

While speaking to kidsoutside Windsor Castle on Saturday, Kate said that 4-year-old sonPrince Louistold her, “At least Grannie is with Great-Grandpa now,” according toThe Sunday Times' royals editor,Roya Nikkhah.

27of 28The Queen’s InfluenceChris Jackson - WPA Pool/GettyThe crowd outside Windsor was dozens deep.

27of 28

The Queen’s Influence

WINDSOR, ENGLAND - SEPTEMBER 10: Catherine, Princess of Wales and Prince William, Prince of Wales speak with members of the public on the Long walk at Windsor Castle on September 10, 2022 in Windsor, England. Crowds have gathered and tributes left at the gates of Windsor Castle to Queen Elizabeth II, who died at Balmoral Castle on 8 September, 2022. (Photo by Chris Jackson - WPA Pool/Getty Images)

The crowd outside Windsor was dozens deep.

28of 28Ups and DownsCHRIS JACKSON/POOL/AFP via GettyDespite the weight of the day, the foursome sported smiles as they departed.

28of 28

Ups and Downs

CHRIS JACKSON/POOL/AFP via Getty

TOPSHOT - (L-R) Britain&rsquo;s Prince William, Prince of Wales, Britain&rsquo;s Catherine, Princess of Wales, Britain&rsquo;s Prince Harry, Duke of Sussex, Britain&rsquo;s Meghan, Duchess of Sussex, wave at well-wishers on the Long walk at Windsor Castle on September 10, 2022. - King Charles III pledged to follow his mother&rsquo;s example of &ldquo;lifelong service&rdquo; in his inaugural address to Britain and the Commonwealth, after ascending to the throne following the death of Queen Elizabeth II on September 8. (Photo by Chris Jackson / POOL / AFP) (Photo by CHRIS JACKSON/POOL/AFP via Getty Images)

Despite the weight of the day, the foursome sported smiles as they departed.

source: people.com