The christening came at the start of a busy week for the monarch, who is due to attend celebrations in London marking the centenary of the Royal Air Force Tuesday and to meet US President Donald Trump in Windsor on Friday.
Kensington Palace announced earlier today that Louis will have six godparents, including some of William's oldest friends business developer Nicholas van Cutsem, businessman Guy Pelly and Harry Aubrey Fletcher, alongside Lady Laura Meade, and Kate's school friend Hannah Gillingham and her cousin Lucy Middleton.
Those who met them said that they praised Belfast people saying that they were "so friendly and warm". For her daughter Charlotte's christening on July 5, 2015, Kate wore a handsome white coat by Alexander McQueen and a white fascinator by Jane Taylor - a similar look by the same designers.
So you can only imagine my glee at seeing all the pics from the christening of Prince Louis of Cambridge.
Zverev battles past Fritz into Wimbledon's 3rd round
German fourth seed Alexander Zverev wilted in 33-degree heat and crashed out in the third round on Saturday. But then came one injury after another and a slide to 589th a year ago because of a lack of matches.
The Queen, Meghan, Harry, Kate, Wills, Camilla and Princess Anne were seen arriving at Westminster Abbey for a memorial service before a flypast this morning. The Queen and Prince Philip did not attend.
And this is not the first time Prince George's traditional style has been raising issues as Princess Charlotte's brother has become a bit of an icon.
Prince Harry and Meghan Markle gave major relationship goals at their fairytale wedding. At St James's Palace in London, nearly the entire gang (minus the Queen) was there to celebrate his big day-which he reportedly slept through completely.
Apparently, Prince Harry is starting an exclusive library for the 11-week-old, who is fifth-in-line to the throne.