The Princess of Wales revealed the adorable moniker during a coronation event.
The 5-year-old prince let out a big yawn and pointed out interesting things while seated in Westminster Abbey.
The young royal was absolutely adorable in a set of countryside photos.
Sunday marked the first time the 4-year-old prince accompanied his family to Easter church services.
The Duke and Duchess of Cambridge are making significant life changes this year.
"As a parent of a four year old not in line to the throne. Prince Louis we see you and we understand you."
The 4-year-old royal was the accidental star of the queen's Platinum Jubilee.
The 4-year-old royal is the gift that keeps on giving.
Watch Queen Elizabeth II’s Platinum Jubilee kick off with pomp and circumstance to mark her historic milestone on the British throne.
Louis yelling next to Queen Elizabeth is perhaps the most perfect photo from the Trooping the Colour celebrations.