Like George in 2013, Louis wore his wearing his finery to the Chapel Royal at St. James Palace; and like with both George and Charlotte, the Archbishop of Canterbury Justin Welby will be performing the christening honors.
The christening of Prince Louis will take place inside The Chapel Royal, a location with strong ties to the royal family.
Prince Louis, the third child of Britain's Prince William and wife Kate, has been christened at a small, private ceremony overseen by close family but without his great-grandmother Queen Elizabeth.
However, the 92-year-old queen and her husband Prince Philip were not among the guests.
Little baby Louis wore a handmade replica of the Royal Christening Robe, the palace said, which was made by the queen's longtime dressmaker, Angela Kelly.
It's days like today that make being a mom so special for Kate Middleton.
The UK's Press Association said the decision is understood not to have been taken for health reasons and was mutually agreed by the Queen and Louis' parents, the Duke and Duchess of Cambridge, some time ago.
Queen Victoria and Prince Albert Wednesday in the chapel, and the heart of Queen Mary is buried inside. The group ― Nicholas van Cutsem, Guy Pelly, Harry Aubrey-Fletcher, Lady Laura Meade, Mrs. Robert Carter and Lucy Middleton ― was announced prior to the ceremony, in a statement put out by Kensington Palace.
Prince Louis' godparents most closely reflect the list of Princess Charlotte's godparents as there are no major royals on the list.