See Photos of Prince George & Princess Charlotte Looking Adorable at Aunt Pippa Middleton's Wedding

Pippa Middleton married financier James Matthews in a stunning spring wedding at St. Mark’s Church in Englefield today, Saturday, May 20, and of course, her royal niece and nephew were part of the celebration — if not a complete focal point! (How could they not be, when they're so cute?) Prince George and Princess Charlotte, looking as adorable as ever in bespoke outfits from Pepa & Co., accompanied their proud parents, the Duke and Duchess of Cambridge — aka Prince William and Kate Middleton — to the high-profile affair.

The 3-year-old prince, who served as a page boy, looked just like his dad as a child, when he was in his uncle Prince Andrew's 1986 wedding. The 2-year-old princess, who served as a bridesmaid, beamed as she stayed close to her mom. The two joined a gaggle of other children as part of the bridal party.

Here are just a few sweet shots of the royal L.O.s hanging with their impeccably dressed mom, one another, and the all the kiddos on their aunt's big day.

According to People, wedding guests told reporters that the children were “very” well-behaved during the ceremony. One guest said of the nuptials, "It was amazing. [Pippa and James] were so cute. I cried. My makeup was running."

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So sweet! Congratulations to the beautiful newlyweds and the entire royal family!