Used by royals since Queen Victoria'stime, that little church was a sentimental choice because it's where Prince William's late mother, Princess Diana, was herself christened in 1961 when her Spencer family was living on the Sandringham estate.
The three-year-old was seen confidently shaking hands with the Archbishop of Canterbury and The Dean of The Chapel Royal, The Right Reverend and Right Honourable the Lord Chartres before heading inside for the ceremony.
Instead, Prince William's friends Nicholas van Cutsem, fellow Etonian Harry Aubrey-Fletcher and nightclub owner Guy Pelly will serve as godfathers.
Britain's Catherine, Duchess of Cambridge holds Britain's Prince Louis of Cambridge on their arrival for his christening service. Pint-sized Prince Georgelooks cute as a little button in his navy blue shorts and white top with Peter Pan collar and blue piping around the sleeves.
The christening took place at Chapel Royal at St James's Palace.
Hannah Carter: Formerly Hannah Gillingham, she went to school with Kate at Marlborough College.