Archie Harrison Mountbatten-WindsorMeghan Markle and Prince Harry's first child and son, was christened on Saturday in a private ceremony at Windsor Castle.

Many members of the royal family were there to celebrate the momentous occasion. In addition to the proud parents, attendees included the child's uncle Prince William and aunt Kate Middleton, grandparents Prince Charles and Camilla, Duchess of Cornwall, and great-aunts Lady Jane Fellowes and Lady Sarah McCorquodale—sisters of Harry and William's late mother Princess Diana.

Queen Elizabeth II and Prince Philip did not attend due to a prior engagement.

The young royal was christened by the Archbishop of Canterbury, the Most Reverend Justin Welby—the same person who performed the christenings of William and Kate's children Prince GeorgePrincess Charlotte and Prince Louis. He also officiated Harry and Meghan's wedding vows in May 2018 and baptized the Duchess of Sussex two months before the nuptials.

In honor of baby Archie's big day, here's a look back at other royal christening throughout the years.

Archie, Royal Christening, Prince Harry, Prince William, Meghan Markle, Kate Middleton

Chris Allerton/SussexRoyal

Kate Middleton, Prince Louis, Christening

Dominic Lipinski/Pool Photo via AP

Duchess of Cambridge, Kate Middleton, Princess Charlotte, Prince William, Christening

© Mario Testino / Art Partner

Prince George, Prince William, Kate Middleton, Christening

John Stillwell/PA Wire/Press Association via AP Images

Royal Christening, Princess Diana, Princess of Wales, and Prince Charles, Prince of Wales, Prince William

Anwar Hussein/WireImage

Royal Christening, Prince William, Queen Elizabeth, Queen Mother, Prince Charles, Princess Diana

Anwar Hussein/Getty Images

Royal Christening, Duchess Catherine, Kate Middleton, Carole Middleton, Micheal Middleton

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Royal Christening, Prince Harry, Prince William, Princess Diana, Prince Charles, Queen Eliabeth

Anwar Hussein/Getty Images

Royal Christening, Queen Elizabeth II, Prince Charles

Central Press/Getty Images

Royal Christening, King George VI, Queen Elizabeth, Queen Mother, Queen Elizabeth II

Popperfoto/Getty Images

Royal Christening, Queen Victoria, King Edward VIII, Mary of Teck, Grandmother Alexandra

W & D Downey/Getty Images

Royal Christening, Princess Eugenie, The Cuchees of York, Prince Andrew

Tim Graham/Getty Images

Royal Christening, Princess Beatrice Of York, Prince William, Prince Harry, Prince Charles, Princess Diana

Tim Graham/Getty Images

Royal Christening, Princess Beatrice Of York, Fergie

Tim Graham/Getty Images

Royal Christening, Prince William, Godson, Konstantine Alexios

Tim Graham/Getty Images

Royal Christening, Princess Maxima, Princess Ariane

ROBIN UTRECHT/AFP/Getty Images

Royal Christening, Princess Letizia of Spain, Princess Sofia, Crown Prince Felipe of Spain

Juanjo Martin/Pool/Getty Images

Royal Christening, Charlotte Casiraghi

Patrick SICCOLI/GAMMA/Getty Images

Royal Christening, Crown Princess Mary, Crown Prince Frederik of Denmark, Prince Vincent, Princess Josephine

Pascal Le Segretain/Getty Images

Royal Christening, Duchess Of Gloucester, The Earl Of Ulster, Baby Lady Rose Windsor

TIM GRAHAM/Getty Images

Royal Christening, Queen Elizabeth II, Princess Anne

Central Press/Getty Images

Royal Christening, Princess Elizabeth Alexandra Mary, King George V of Great Britain, Duke of York, Earl of Strathmore, Queen Mary

Bob Thomas/Popperfoto/Getty Images

Royal Christening, Catharina-Amalia, daughter of Dutch crown prince Willem-Alexander and Princes Maxima

OBIN UTRECHT/AFP/Getty Images

Royal Christening, Nicola, son of Constantine II of Greece

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Per tradition, Archie wore a handmade replica of the Royal Christening Robe. The robe was originally made in 1841 for the christening of Queen Victoria's eldest daughter, Victoria. Queen Elizabeth II later commissioned a handmade replica, which George, Charlotte and Louis wore on their big days.

This isn't the only tradition William and Kate are expected to uphold. They're also expected to serve their guests christening cake, which is actually a tier from their royal wedding cake.

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