King Charles' coronation coincided with his grandsonPrince Archie’s 4th birthday, and some reports claim the monarch took a moment to acknowledge his relative on the big day.According to theDaily Mail, King Charles toasted to “those that weren’t there” and wished Prince Archie a happy birthday “wherever he was,” at a private family gathering for lunch on Saturday following hishistoric coronationatWestminster Abbey.“It was apparently a very sweet moment,“a source told the outletof the event at Buckingham Palace.King Charles and Prince Archie.Neil Mockford/Getty ; Pool/Samir Hussein/WireImageHowever, PEOPLE understands that King Charles did not give a speech at the post-coronation gathering.Prince Harrydeparted the United Kingdom to head back to California to join wifeMeghan Markle, Prince Archie and their daughterPrincess Lilibetshortly after the crowning ceremony. The Duke of Sussex, 38, was not invited to join the King,Queen Camilla,Prince William,Kate Middletonand other members of the royal family on the Buckingham Palace balcony to watch the flypast following the coronation.Prince Harry and Meghan Markle.Michael M. Santiago/GettyWhile the major occasion was a royal reunion for Prince Harry and other members of the royal family, who were all last together forQueen Elizabeth’s state funeral in September, it waspreviously reportedthat the Duke of Sussex didn’t plan to stay long.The church service commenced at 11 a.m., and the Duke of Sussex headed back to the airport to fly back to California shortly after.Prince Harrycame to the crowning ceremony without the Duchess of Sussex, 41, who stayed back with their young children. The couple relocated to Meghan’s home state after stepping back from their royal roles in January 2020. Buckingham Palaceannounced in Aprilthat Harry would attend the crowning ceremony and Meghan would not.Can’t get enough of PEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates onKate Middleton,Meghan Markleand more!King Charles and Queen Camilla following the crowning ceremony.Handout/Chris Jackson/Getty for Buckingham PalaceAs for Archie’s celebration,a source told PEOPLE in Aprilthat the party was planned to be “low-key” and at the family’s home.“They’ll have friends around them and Meghan’s mom, Doria [Ragland]. Meghan will definitely have support that weekend,” the source said.Little sister Lilibet was also set to be part of the festivities. “They are so sweet together. Archie loves Lili. He’s such a sweet boy. When she’s not around, he asks, ‘Where’s Lili?’ " the source added at the time.

King Charles' coronation coincided with his grandsonPrince Archie’s 4th birthday, and some reports claim the monarch took a moment to acknowledge his relative on the big day.

According to theDaily Mail, King Charles toasted to “those that weren’t there” and wished Prince Archie a happy birthday “wherever he was,” at a private family gathering for lunch on Saturday following hishistoric coronationatWestminster Abbey.

“It was apparently a very sweet moment,“a source told the outletof the event at Buckingham Palace.

King Charles and Prince Archie.Neil Mockford/Getty ; Pool/Samir Hussein/WireImage

LONDON, ENGLAND - MAY 06: King Charles III on the Buckingham Palace balcony during the Coronation of King Charles III and Queen Camilla on May 06, 2023 in London, England. The Coronation of Charles III and his wife, Camilla, as King and Queen of the United Kingdom of Great Britain and Northern Ireland, and the other Commonwealth realms takes place at Westminster Abbey today. Charles acceded to the throne on 8 September 2022, upon the death of his mother, Elizabeth II. (Photo by Neil Mockford/Getty Images); CAPE TOWN, SOUTH AFRICA - SEPTEMBER 25: Prince Harry, Duke of Sussex, Meghan, Duchess of Sussex and their baby son Archie Mountbatten-Windsor meet Archbishop Desmond Tutu and his daughter Thandeka Tutu-Gxashe at the Desmond & Leah Tutu Legacy Foundation during their royal tour of South Africa on September 25, 2019 in Cape Town, South Africa. (Photo by Pool/Samir Hussein/WireImage)

However, PEOPLE understands that King Charles did not give a speech at the post-coronation gathering.

Prince Harrydeparted the United Kingdom to head back to California to join wifeMeghan Markle, Prince Archie and their daughterPrincess Lilibetshortly after the crowning ceremony. The Duke of Sussex, 38, was not invited to join the King,Queen Camilla,Prince William,Kate Middletonand other members of the royal family on the Buckingham Palace balcony to watch the flypast following the coronation.

Prince Harry and Meghan Markle.Michael M. Santiago/Getty

NEW YORK, NEW YORK - JULY 18: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex arrive at the United Nations Headquarters on July 18, 2022 in New York City. Prince Harry, Duke of Sussex is the keynote speaker during the United Nations General assembly to mark the observance of Nelson Mandela International Day where the 2020 U.N. Nelson Mandela Prize will be awarded to Mrs. Marianna Vardinogiannis of Greece and Dr. Morissanda Kouyaté of Guinea. (Photo by Michael M. Santiago/Getty Images)

While the major occasion was a royal reunion for Prince Harry and other members of the royal family, who were all last together forQueen Elizabeth’s state funeral in September, it waspreviously reportedthat the Duke of Sussex didn’t plan to stay long.

The church service commenced at 11 a.m., and the Duke of Sussex headed back to the airport to fly back to California shortly after.

Prince Harrycame to the crowning ceremony without the Duchess of Sussex, 41, who stayed back with their young children. The couple relocated to Meghan’s home state after stepping back from their royal roles in January 2020. Buckingham Palaceannounced in Aprilthat Harry would attend the crowning ceremony and Meghan would not.

Can’t get enough of PEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates onKate Middleton,Meghan Markleand more!

King Charles and Queen Camilla following the crowning ceremony.Handout/Chris Jackson/Getty for Buckingham Palace

LONDON, ENGLAND - MAY 06: (NEWS EDITORIAL USE ONLY. IMAGES MAY ONLY BE USED IN RELATION TO THE CORONATION OF KING CHARLES III. NO COMMERCIAL USE. THE IMAGE SHALL NOT BE USED AFTER 0001hrs, MONDAY 22nd MAY. After that date, no further licensing can be made, please remove from your systems and contact Getty Images for any usage) NO SALES. Copyright vests with Getty Images and publications are asked to credit Chris Jackson/Getty Images. All terms of release must be adhered to. The photograph has been distributed with permission from Royal Communications. The photograph is being made available by way of licence on condition that: The image shall be solely for news editorial use only. The image should be used only in the context of the Coronation of King Charles III. No charge should be made for the supply, release or publication of the image. There shall be no commercial use whatsoever of the image (including any advertorial, endorsement, advertising, promotion, merchandising and/or other non-editorial use purpose, or any use which implies any endorsement or patronage of any products, services or business). The image must not be digitally enhanced, manipulated or modified in any manner or form). In This handout image released by Buckingham Palace, King Charles III and Queen Camilla pose and smile after their Coronation, at Buckingham Palace on May 06, 2023 in London, England. (Photo by Handout/Chris Jackson/Getty Images for Buckingham Palace

As for Archie’s celebration,a source told PEOPLE in Aprilthat the party was planned to be “low-key” and at the family’s home.

“They’ll have friends around them and Meghan’s mom, Doria [Ragland]. Meghan will definitely have support that weekend,” the source said.

Little sister Lilibet was also set to be part of the festivities. “They are so sweet together. Archie loves Lili. He’s such a sweet boy. When she’s not around, he asks, ‘Where’s Lili?’ " the source added at the time.

source: people.com