Prince Louis of Cambridge came into the world on St. George's Day, his mom Duchess Kate's reported due date, and the little brother to Prince George and Princess Charlotte was cute as a button – despite being the Prince William and Kate's largest baby to date at 8 lbs 7 oz!
The little one's full name, Louis Arthur Charles, is steeped in significance. Louis pays tribute to his great-grandfather Prince Philip's great-uncle, Earl Mountbatten, who was killed in 1979 by the IRA. The name, which is of French and German origin and means "renowned warrior," is one of William and Prince George’s middle names.
Click through to see all of the sweetest photos of Prince William and Kate's third child...
The then-one-year-old looked adorable in a very seasonal sweater – and looked just like both his big brother and his mom!
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