Happy birthday Kate Middleton: These are the cutest photos of the Duchess with her children

Today marks Kate Middleton's 37th birthday! To celebrate, we're reliving the Duchess of Cambridge's cutest moments with her children—Prince George, Prince Charlotte and Prince Louis—through the years. Just like her royally-festive style and her picture-perfect baby bumps, these throwbacks are a pure delight to behold.

When the Duchess of Cambridge introduced her first baby Prince George to the world on July 22, 2013, we were immediately smitten. And who knew this little bundle of joy would give us some memorable (and meme-worthy) moments of his own through the years.

Fast forward three years and the little Prince and his mother were seen doing some major bonding (kind of). They walked hand-in-hand during their appearance at The Royal International Air Tattoo at RAF Fairford on July 2016. Kate is looking at her son as he jams out. 

Kate is absolutely beaming in this winter photo as she and her husband pose with their children at Courchevel, a luxury ski-resort in the French Alps. This marks the first time George and his younger sister Charlotte experienced snowfall, so that might be why their mother seems so overjoyed.

During her sister Pippa Middleton's wedding, Kate was tasked with keeping order amongst the children in the bridal party. Her own two little ones were part of the group. The Duchess eventually had to pull out the finger and (gently) shush the kids. Adorable!

On May 2, 2015, Kate introduced her second child Princess Charlotte to the world. And again, the Duchess managed to look totally photogenic as she donned a beautiful and bright yellow dress just hours after giving birth. 

Even when Kate is scolding her little ones, she still manages to look on point. Her fascinator is in place, heels still standing and Princess Charlotte is on her hip while she lectures George. This picture will surely resonate with moms mums everywhere. 

Okay, now this is too cute! Kate was spotted enjoying the shining sun with her kids while they attended the Maserati Royal Charity Polo Trophy at Beaufort Park in June 2018. Charlotte was sporting a cute frock, while George had a slinky toy in hand. But neither one of them could get enough of their mom that day. We can't either, guys!

Baby number three! On April 23, 2018, Kate introduced us to her third baby, Prince Louis, as she left St Mary's Hospital. The Duchess channeled her late mother-in-law Princess Diana by wearing a red dress with a white lace collar. 

Seriously?! Kate and her daughter matched during the Trooping of the Colour in 2016. As you could tell, they were both clearly enjoying the pretty in prink vibes during the Queen's 90th birthday. 

Princess Charlotte makes her mom smile as she plays with a mini maraca during an outing together. The way the Duchess looks lovingly at her daughter is positively infectious.

Last year's holiday photo marked the first time the Cambridges posed as a family of five for their Christmas card. Every member (including little Prince Louis!) sported denim for the occassion.