All the royal ladies in attendance-including the Duchesses of Cornwall, Cambridge and Sussex, as well as a couple of stray Middletons-stepped out wearing their Sunday best, and there were several stand-out looks. The duchess' sister, Pippa, arrived with husband James Matthews.
After telling the photographers that they were not coming with the royal family to Prince Louis' christening, she continued to give them a stare-down as she walked away.
He was set to wear the same gown worn by his older siblings, Prince George and Princess Charlotte.More news: Trump Fears Rosenstein Is a 'Covert Liberal Trying to Undermine His Presidency'
The 11-week-old prince, whose full name is Louis Arthur Charles, was born on April 23 and is fifth in line to the British throne.
Van Cutsem's father was one of Prince Charles's closest friends.
Mr. Guy Pelly is one of William and Harry's closest childhood friends. Pelley was also responsible for planning Prince William's bachelor party.
Aubrey-Fletcher is yet another longtime friend of William's, according to People.More news: Federer shocked at Wimbledon as Nadal, Djokovic set-up semis date
Princess Charlotte didn't stop there, though.
Lucy Middleton is the Duchess' cousin and the sister of Adam Middleton, another of Princess Charlotte's godfathers. A royal source said it had been agreed some time ago that the queen would not attend and her absence was not due to any health issues.
Prince Louis sleeps through his royal christening.
The event will be the first time that William, Kate and their three children have all been seen in public together. As is tradition, the holy water used in the ceremony will be drawn from the River Jordan.
After the christening, William and Kate are hosting a private tea at Clarence House.More news: Trump scolds Europe on gas