Kensington Royal share a selection of photos of the young prince to mark the special occasion.
Prince William and Kate Middleton's first born son, George has recently celebrated his sixth birthday, with a selection of photos shared on the Kensington Royal Instagram page.
The three images were taken by his mother, Kate Middleton, who has shared a keen interest in photography - taking most of her children's portraits.
Two of them show Prince George proudly wearing the English FC team jersey with a big grin on his face, showing his current passion for the sport.
The adorable images, taken in the garden of his home at Kensington Palace, show the young boy rolling in the grass laughing, living his best life as a six year old.
The images show his baby teeth replaced by adult teeth coming through - a sweet reminder of the young prince growing up.
The second image shared is of the young Duke of Kent on holidays by his mother, the Duchess of Cambridge.
As the oldest of Prince William and Duchess Kate's three children, Prince George is the first in line to the throne and will someday be King of England.
Wearing his English FC jersey, the six year old smiles wide for the camera as his mum takes a series of photos. The post is led with a soccer emoji, indicating Prince George's interest in the sport - much like many other children of his age.