The adorable kids, including George and Charlotte, who walked with Meghan Markle down the aisle

PHOTO: Meghan Markle walks down the aisle as she arrives for the wedding ceremony to Prince Harry at St. Georges Chapel in Windsor Castle in Windsor, May 19, 2018. Danny Lawson/AP
Meghan Markle walks down the aisle as she arrives for the wedding ceremony to Prince Harry at St. George's Chapel in Windsor Castle in Windsor, May 19, 2018.

Bride Meghan Markle was accompanied up the steps of St. George's Chapel by the 7-year-old sons of her friend Jessica Mulroney, a Toronto-based entrepreneur and style advisor.

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Bridesmaids, the equivalent of flower girls in the United States, and page boys of grade-school age, are part of the British royal wedding tradition.

Markle, 36, chose to not have a maid of honor and instead to have bridesmaids and page boys, all children, by her side at the wedding, including new nephew and niece, Prince George, 4, and Princess Charlotte, 3.

PHOTO: Catherine, the Duchess of Cambridge arrives with the bridesmaids at St Georges Chapel at Windsor Castle for the wedding of Prince Harry and Meghan Markle in Windsor, May 19, 2018. Reuters
Catherine, the Duchess of Cambridge arrives with the bridesmaids at St George's Chapel at Windsor Castle for the wedding of Prince Harry and Meghan Markle in Windsor, May 19, 2018.
PHOTO: Princess Charlotte arrive for the wedding ceremony of Britains Prince Harry and Meghan Markle at St Georges Chapel at Windsor Castle in Windsor, May 19, 2018. AFP/Getty Images
Princess Charlotte arrive for the wedding ceremony of Britain's Prince Harry and Meghan Markle at St George's Chapel at Windsor Castle in Windsor, May 19, 2018.
PHOTO: Britains Prince William, Kate Duchess of Cambridge and Prince George leave after the wedding ceremony of Prince Harry and Meghan Markle at St. Georges Chapel in Windsor Castle in Windsor, May 19, 2018. AP
Britain's Prince William, Kate Duchess of Cambridge and Prince George leave after the wedding ceremony of Prince Harry and Meghan Markle at St. George's Chapel in Windsor Castle in Windsor, May 19, 2018.

The 7-year-old twin Mulroney boys, Brian and John, held the train of Markle's dress as she walked up the steps as the rest of the young bridesmaids and page boys followed behind.

PHOTO: Meghan Markle arrives for the wedding ceremony of Prince Harry and Meghan Markle at St. Georges Chapel in Windsor Castle in Windsor, May 19, 2018. AP
Meghan Markle arrives for the wedding ceremony of Prince Harry and Meghan Markle at St. George's Chapel in Windsor Castle in Windsor, May 19, 2018.
PHOTO: Meghan Markle arrives for the wedding ceremony to marry Britains Prince Harry, Duke of Sussex, at St Georges Chapel, Windsor Castle, in Windsor, May 19, 2018. Ben Stansall/AFP/Getty Images
Meghan Markle arrives for the wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, May 19, 2018.
PHOTO: Meghan Markle walks down the aisle as she arrives for the wedding ceremony to Prince Harry at St. Georges Chapel in Windsor Castle in Windsor, near London, May 19, 2018. AP
Meghan Markle walks down the aisle as she arrives for the wedding ceremony to Prince Harry at St. George's Chapel in Windsor Castle in Windsor, near London, May 19, 2018.

All of the adorable bridesmaids wore flower crowns designed by florist Philippa Craddock.

PHOTO: Princess Charlotte waves by her mother Britains Catherine, Duchess of Cambridge after attending the wedding ceremony of Britains Prince Harry and Meghan Markle at St Georges Chapel in Windsor, May 19, 2018. AFP/Getty Images
Princess Charlotte waves by her mother Britain's Catherine, Duchess of Cambridge after attending the wedding ceremony of Britain's Prince Harry and Meghan Markle at St George's Chapel in Windsor, May 19, 2018.
PHOTO: Princess Charlotte of Cambridge arrives at the wedding of Prince Harry to Ms Meghan Markle at St Georges Chapel, Windsor Castle on May 19, 2018 in Windsor. Chris Jackson/Getty Images
Princess Charlotte of Cambridge arrives at the wedding of Prince Harry to Ms Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor.

Besides Princess Charlotte, the other bridesmaids were: Jessica Mulroney's 4-year-old daughter, Ivy; Markle's goddaughters Rylan, 7, and Remi, 6, who are daughters of her Los Angeles friend Benita Litt; and 3-year-old Florence van Cutsem and 2-year-old Zalie Warren, who are both Harry's goddaughters.

         
              
                     
                                        PHOTO: Duke and Duchess of Sussex                                                                        
            
                SLIDESHOW: PHOTOS: Prince Harry and Meghan Markle's royal wedding             
        
    
    

Besides Prince George and the Mulroney twins, the other page boy was Harry's godson, Jasper Dyer, the son of his mentor and close friend, Capt. Mark Dyer. Capt. Dyer has been at Harry's side since shortly after the death of Princess Diana in 1997.

The bridesmaids' dresses were intended to have the same sense of timeless purity as the bride's dress, according to Kensington Palace. The designer was the same as for Markle's wedding gown, Clare Waight Keller for the Givenchy Haute Couture Atelier in Paris.

The six bridesmaids all wore white leather Aquazurra shoes monogrammed with their initials and the wedding date that were a gift from the bride.

The four page boys each sported a miniature version of the Blues and Royals frock coat that Prince Harry and Prince William wore.

PHOTO: Britains Prince George leaves after the wedding of Prince Harry and Meghan Markle at St. Georges Chapel in Windsor Castle in Windsor, May 19, 2018. AP
Britain's Prince George leaves after the wedding of Prince Harry and Meghan Markle at St. George's Chapel in Windsor Castle in Windsor, May 19, 2018.

"The uniform draws its insignia from the Blues and Royals, which is an old regiment of the Duke of Cambridge and Prince Harry," according to a Kensington Palace press release.

Each page boy's initials were embroidered in gold on their shoulder straps as a special memento.