Kate Middleton, the Princess of Wales.Photo: Jacob King / POOL / AF/Getty

Kate MiddletonandPrince Williamare celebrating the coronation weekend!
On Friday, the Prince and Princess of Wales attended a special reception at Buckingham Palace held in honor ofKing Charles.
After welcoming governors-general and prime ministers of the realm at apalace lunchand doing asurprise walkaboutin London earlier in the day,Prince William, 40, and Princess Kate, 41, popped up at the royal residence again to help host the coronation reception for overseas guests. There, they mingled with many of theforeign royal familieswho traveled to the U.K. to attend King Charles' coronation.
Princess Kate was spotted chatting with Crown Prince Frederik and Crown Princess Mary of Denmark as well as U.S. First Lady Jill Biden and her granddaughter Finnegan Biden during the reception. Kate also reconnected with the First Lady of Ukraine, Olena Zelenska.
It’s likely thatPrince Williamand Princess Kate won’t be drinking much at the reception. When the pair visited a London pub on Thursday, the prince told some people gathered outside that he “just had a bit of cider” inside before adding that he was putting his coronation responsibilities first. “I will drink after the coronationbut not now,” he quipped.
Attendees of the evening reception included Prince Albert and Princess Charlene of Monaco, King Felipe and Queen Letizia of Spain, King Jigme Kesar and Queen Jetsun of Bhutan, Crown Prince Haakon and Crown Princess Mette-Marit of Norway, former queen Princess Beatrix and future queen Princess Catharina-Amalia of the Netherlands, King Philippe and Princess Elisabeth of Belgium,King Carl XVI GustafandCrown Princess Victoriaof Sweden.
Prince William.Jacob King - WPA Pool / Getty

The Prince of Wales willpay homageto King Charles, stepping forward to pledge his loyalty and allegiance. Meanwhile,Prince George, who is second in theline of succession, is set to serve as aPage of Honoralongside Queen Camilla’sthree grandsonsand support his grandfather the King.
Kate Middleton and Jill Biden.Jacob King - WPA Pool / Getty

After the coronation service andcarriage processions, the Wales family is expected to appear on the balcony of Buckingham Palace with the King and Queen. The moment will be momentous as King Charles' firstbalcony appearanceas monarch and William and Kate’s first as the Prince and Princess of Wales.
Prince Albert and King Charles.Jacob King - WPA Pool / Getty

On Sunday, the royal family will come together again for theCoronation Concert, broadcast live from Windsor Castle.Lionel Richie,Katy Perry,Andrea Bocelliand more will ignite the night with powerful performances, as iconic landmarks are illuminated across the U.K.
Though Charles became King immediately upon the death of his motherQueen Elizabethin September, his symbolic crowning significantly continues nearly a thousand years of royal tradition.
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King Charles.Jacob King - WPA Pool / Getty

“Charles became King Charles the moment his mother died, but the coronation is to do with the job and being the monarch in the eyes of all the people,” royal historian Robert Lacey previously told PEOPLE.
source: people.com