Vice Admiral Sir Timothy Laurence, Sophie, Duchess of Edinburgh (wearing the Mantle of the Royal Victorian Order), Princess Charlotte of Wales, Princess Anne, Princess Royal, Catherine, Princess of Wales (wearing the Mantle of the Royal Victorian Order), Prince Louis of Wales and Prince William, Prince of Wales (wearing the Mantle of the Order of the Garter) watch an RAF flypast from the balcony of Buckingham Palace following the Coronation of King Charles III & Queen Camilla at Westminster Abbey on May 6, 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.

Princess Charlotteis picking up onroyal etiquettefrom momKate Middleton!

In aclipfrom the new BBC documentaryCharles III: The Coronation Year,which is airing in full in the U.K. on Tuesday, andcirculated on X,rehearsalsare underway forKing CharlesandQueen Camilla’s coronation.Prince Williamand Princess Kate brought their three children,Prince George, Princess Charlotte andPrince Louis, to the practice session at Westminster Abbey and were spotted greeting the King.

King Charles and Prince William, 41, said hello to each other first, kissing each other on both cheeks. The monarch, 75, then embraced his daughter-in-law, 41, with a hug and kiss before Princess Kate dipped into a quick curtsy.

King Charles then greeted his granddaughter Princess Charlotte, 8, in the same way, and Charlotte expertly followed protocol and also curtsied after their hug.

Prince George, 10, and Prince Louis, 5, also hugged their grandfather.

Prince George of Wales (in his role as Page of Honour) and King Charles III watch an RAF flypast from the balcony of Buckingham Palace following the Coronation of King Charles III & Queen Camilla at Westminster Abbey on May 6, 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.

Prince William was also spotted brushing Prince George’s hair off his forehead.

Richard Jackson, the Bishop of Hereford, said to the camera, “I think what struck me particularly is how extraordinarily affectionate they are. They’re clearly a very close family, of all the generations, and in a sense, you felt you’re part of a family occasion as well as, you know, a royal occasion and a national occasion.”

Just as public citizens may opt to do whenmeeting a royal, it’s common to see members of the family showing respect while greeting each other. Men traditionally bow their heads while women curtsy.

When royals aren’t seen bowing or curtsying to greet the King and Queen, there’s usually a logical reason why: they may have already seen each other that day.

Prince William, Kate Middleton, Prince Louis and Princess Charlotte arrive at the coronation on May 6, 2023.Phil Noble - WPA Pool/Getty Images

Prince William and Catherine, Princess of Wales arrives for the Coronation of King Charles III and Queen Camilla on May 6, 2023 in London, England.

Phil Noble - WPA Pool/Getty Images

The documentary also captured intimate moments behind-the-scenes of the crowning ceremony, including King Charlespoking fun at his “sausage fingers"as Prince William practices tying a robe on him and the staff at Buckingham Palace welcoming them back after the coronation service.

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King Charles and Queen Camilla at the coronation on May 6, 2023.Dan Kitwood/Getty Images

King Charles III and Queen Camilla can be seen on the Buckingham Palace balcony ahead of the flypast during the Coronation of King Charles III and Queen Camilla on May 06, 2023

Dan Kitwood/Getty Images

Princess Kate is a key member of the royal family, as was displayed when she recently helped King Charles and Queen Camilla host more than 500 members of the diplomatic corps at the annual Buckingham Palace reception on Dec. 5. The Princess of Walesworked the room, glittering in the historic Lover’s Knot tiara.

“She hugely enjoyed that evening and looked really at home,”a royal source tells PEOPLEexclusively in this week’s issue. “She knows the important role the family plays in building relationships globally on behalf of the U.K.” Adds the insider: “It is clear that she and the King are quite close — in some respects closer to him than William.”

source: people.com