Prince Louis, the youngest son of Prince William and Kate Middleton, celebrates his sixth birthday today. While he has participated in significant royal events such as the Queen’s Jubilee and King Charles’ Coronation, Louis has yet to undertake an official overseas royal tour, unlike his cousin Prince Archie. Although travel restrictions due to COVID impacted Louis’ toddler years, his older siblings embarked on their first royal tours at a younger age. It remains unknown when Louis will make his royal tour debut, but he recently carried out his first public engagement at King Charles’ Coronation Big Help Out.