In one photo, she's seen smiling down at her son - who's wrapped up in his royal gown for the day out.
The pictures were taken in the Morning Room at Clarence House (the official London resident of Louis' grandpa, Prince Charles, and his wife, Camilla, Duchess of Cornwall) just after Louis' baptism in the Chapel Royal at St. James's Palace.
Photographer Matt Holyoak took the official photographs at Clarence House.
Trump's criticism of Russia-Germany gas project aims to promote US LNG
History has shown that Russian Federation has a penchant for attempting to control Europe by cutting off energy supplies. Until now U.S. exporters have targeted markets in south America and Asia, including China, where prices are firmer.
'Everyone was so relaxed and in such good spirits, it was an absolute pleasure.
Photographer Matt Holyoak captured the special moments at Clarence House after the christening.
Prince Louis is pictured in the arms of his mother and surrounded by his immediate family in touching photographs released to mark his christening.
Newlyweds Prince Harry and Meghan, who looked stylish in an olive-green Ralph Lauren outfit and Stephen Jones hat, were also in attendance, along with Louis' siblings Prince George, 4, and Princess Charlotte, 3.
The Cambridges posed for the first time as a family of five.
Trump, on U.K. visit, blasts May's Brexit plan
Trump went on to suggest The Sun's report was fake news, claiming he had a recording of the interview to back that up. Embassy in Brussels, the president also lashed out at the Muslim mayor of London , saying he had done "a awful job".
However, as with many royal family photos, there are some hidden details you probably missed when first taking a look at the photographs.
The photographs have been released by the Duke and Duchess of Cambridge to mark the milestone.
Another user said, "Princess Charlotte holding her baby brother's hand in the official family photo is the best thing on Twitter today".
Here's how the big group photos compare between the royal babies, both past and present. And proud grandparents Prince Charles and Carole Middleton are standing in the center, behind the Duke and Duchess and their two young children.
The sleeping Prince looked peaceful and unaware of all the fuss carrying on around him as his beaming mother carried him into the service.
Meghan Markle and the Duchess of Cambridge watch Serena Williams at Wimbledon
This year F1 ace Lewis Hamilton , golfer Tiger Woods and Dame Anna Wintour offered their support from behind her team. Serena Williams lost her match at Wimbledon this year, but luckily, she had her friends there to support her.