The event will be the first time that William, Kate and their three children have all been seen in public together.
Louis will wear the replica of the royal christening robe, first used in 2008. In a relaxed moment, as she was preparing to take her seat in the Royal Box on Centre Court, Pippa was caught side-on - a flawless angle for the cameras.
The Archbishop of Canterbury Justin Welby welcomed the royals at the entrance to the chapel.More news: Hand of Fate 2 Officially Coming to Nintendo Switch; First Trailer Released
The mini royal is looking more and more like Kate everyday.
Louis is fifth in the line of succession to the British throne after his grandfather Prince Charles, his father William, George and Charlotte. And speaking of George and Charlotte, they were as adorable as ever - not surprising in the least!
Wearing an adorable blue and white patterned dress - she wore an nearly identical version of the look in July 2017, while on a visit with her parents to Berlin - the royal teamed the look with a matching blue bow headband in her hair. It's growing so fast! Could they be any more picturesque and ideal?More news: Barcelona : Paulinho officially re-joins Guangzhou Evergrande
Charlotte was christened at Sandringham's St. Mary Magdalene church in Norfolk, which is the same church her late grandmother, Princess Diana, was christened in.
While grandparents, aunts and uncles will all be present for the special day, the little one's regal great-grandmother and great-grandfather will not be taking a seat inside The Chapel Royal at St. James's Palace in London. The youngest royal made his first-ever pubic appearance just hours after his birth on April 23.
William and Kate were to host a private tea afterwards.
Prince Louis's christening gown is the same one that was used by his siblings.More news: Turkey train crash: 10 dead after horror derailment
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