In one of the official pictures, a smiling William and Kate stand against a plain backdrop with their three adorable children. It's one of the first photos where Louis' face can be seen in full.
PrinceLouis3The Duchess of Cambridge and Prince Louis in the garden at Clarence House, following Prince Louis's christening. Add Royal Family as an interest to stay up to date on the latest Royal Family news, video, and analysis from ABC News.
He said he hoped he had captured the "joy" of the christening in his photos.
The royal couple also named six close friends and family members to be godparents to Prince Louis.
His parents, Prince William and Kate, Duchess of Cambridge, were joined by Prince Harry and Meghan, Duchess of Sussex, and Prince Charles and Camilla, Duchess of Cornwall. The candid photograph shows a glowing Kate Middleton cradling her youngest son - a grinning Prince Louis.
The 92-year-old Queen and her husband Prince Philip were not among the guests. Meanwhile, Princess Charlotte leans against her mother as she gazes lovely at Prince Louis.
However it's believed the decision was made not because of health reasons but due to The Queen's hectic upcoming schedule.
Queen Elizabeth, who is 92, did not attend the baptism.
She told Welby that Louis was "very relaxed and peaceful", adding: "I hope he stays like this".
So serene: The 11-week-old sleeps in his mother's arms on the day of his christening.
First official solo shot with son! According to People, the duchess also wore McQueen for the christenings of George and Charlotte.
The Cambridge trio were supervised by Nanny Maria and Kate's private secretary Catherine Quinn.
The tot, who is third in line to the throne and a future king, celebrates his 5th birthday on Sunday.
It had been awhile since we'd last seen the little prince on the steps of the Lindo Wing of St. Mary's Hospital in London and in a portrait of him and big sister, Charlotte, sharing a sweet moment together.