Prince George, Princess Charlotte and Prince Louis sweetly coordinate in blue at Trooping the ColourAdorable.
Prince Louis perfects his royal wave as he makes Trooping the Colour debutLouis joined his big brother and sister Prince George and Princess Charlotte
REVEALED: Kate Middleton's half term plans with Princes George, Louis and Princess CharlotteThe family are very close to London!
GalleryRoyal family album: see Prince William's sweet dad moments with George, Charlotte and LouisHappy birthday to this royal dad!
See what photo Prince William and Kate Middleton sent of Prince Louis to fansPrince Louis turned one on 23 April
Prince Louis is the spitting image of Prince George in new photosThe Cambridges were visiting the Chelsea Flower Show
Prince Louis and Prince George both took their first public steps in these adorable dungareesCan the Cambridges get any cuter?
Kate Middleton's children Prince George, Princess Charlotte and Prince Louis captured on hidden cameras at ChelseaSuch a lovely day for the royal family
Kate Middleton's gardening team reveal she couldn't keep away from Chelsea Flower Show projectThe Duchess designed the garden with children in mind
GalleryKate Middleton takes Prince George, Princess Charlotte and a WALKING Prince Louis to Chelsea Flower Show - all the photosThe Duchess is encouraging children to play outdoors
The CUTE Cambridges! Prince George, Princess Charlotte and Prince Louis wear adorable outfits in new photographsThis is too adorable...
Kate Middleton reveals scary Prince Louis incident all parents can relate toWe have all been there Kate!
Prince Louis' adorable first birthday jumper is a hand-me-down from BEFORE Prince George was bornAnd just as cute as ever…
Prince Charles and Camilla pen sweet birthday tribute to Prince LouisRead the message to Prince Louis below
Prince Harry and Meghan Markle's cute birthday message to Prince Louis - see hereHappy Birthday Prince Louis!
The sweet coincidences in Prince George, Louis and Princess Charlotte's first birthday picturesHappy birthday Louis!
Prince William and Kate Middleton share beautiful pictures of Prince Louis to mark first birthdayHappy Birthday Prince Louis!
Why Prince William and Kate will mark Prince Louis' first birthday differentlyThe celebrations will most likely be early
Kate Middleton expected to make Prince Louis' first birthday extra-special – here's howApril is a big birthday month in the royal family
REVEALED: Where Prince William, Kate Middleton and the kids are spending EasterThey’re enjoying some well-deserved family time
Prince George, Princess Charlotte and Prince Louis now feature on Kensington Palace's profile photoDid you spot them?
Kate Middleton wants her son Prince George to sign up to the ScoutsDuchess Kate paid a visit to the Scouts' headquarters in Essex
Could Prince William miss Prince Louis' first birthday for this important reason?Kensington Palace has announced Prince William's planned engagement
Duchess Kate reveals where she wants to take George, Charlotte and Louis on holidayWilliam also revealed that they love Blackpool rock!
The one adorable outing Kate Middleton always makes with her children Prince George, Louis and Princess CharlotteThe Duchess of Cambridge was spotted in Hyde Park on Thursday
Kate Middleton's sweet solo outing with Prince Louis on Valentine's Day revealedThe Duchess enjoyed some quality time with her baby boy
Kate Middleton opens up about Prince Louis' exciting new milestonePrince Louis has mastered a new milestone
GalleryArchie Harrison, Prince George, Princess Charlotte, Prince Louis and more – ALL the little royals on their best behaviour
When royal fans can expect to see Prince Louis nextEveryone loves watching the Cambridge children grow up
Prince William opens up about Prince Louis' latest milestone - teething!Louis loves chewing things at the moment!
The Queen has the most gorgeous photos of baby Prince Louis in her homeMerry Christmas from the Queen!
Prince Louis celebrates special milestone as part of royal festivitiesWhat a special time for the young Prince
Prince Louis DID attend the Queen's pre-Christmas party with mum Kate Middleton – see pictureThe family were also joined by their nanny, Maria Borrallo