Prince George and Princess Charlotte are becoming quite the little wedding experts [1]. The siblings once again took on the roles of page boy and bridesmaid on Saturday for the wedding of the Duchess of Cambridge's close friends Sophie Carter and Robert Snuggs at St. Andrew's Episcopal Church.

According to People, Prince William, Kate, and their two oldest children were in attendance at the country wedding, [2] along with Kate's parents and her brother, James. George was seen running around the churchyard, having "a great time," while Charlotte stayed by her mother's side for photos. The duo have taken on these special wedding duties twice before, during Meghan Markle and Prince Harry's nuptials [3], as well as Pippa Middleton's wedding to James Matthews [4].

Kate and Sophie have been friends for years, and attend events like Wimbledon [5] together, along with exclusive royal functions. Sophie is also a godmother to Charlotte [6], and her sister-in-law Hannah Gillingham is a godparent to the royal couple's youngest, Prince Louis [7].

Back in 2008, Sophie accompanied Kate to Wimbledon when she and Will were still just dating.

Sophie showed up smiling in powder blue for her goddaughter Charlotte's christening.

Sophie's known to accompany members of the royal family on outings, like when she went with the Middleton's to St. Mary Magdalene Church in Sandringham.

She also made an appearance at Pippa's wedding, although Pippa (who's expecting a baby next month) was not seen at Sophie's nuptials.

Of course, Sophie made an elegant appearance at Prince Harry and Meghan Markle [8]'s wedding as well. She really is a royally supportive friend!