Prince George's birthday portraits over the years

As the third in line to the British throne, Prince George has grown up in front of the cameras. But a special collection of photos shared with the public are the images taken of the growing prince before each birthday.

See how Prince George has grown cuter and changed over the five years:

Prince George is first introduced to the world:

Not long after, the family celebrates George's first birthday with a visit to the Sensational Butterflies exhibition at London's Natural History Museum:

Two-year-old Prince George shows off his cheeky smile as his dad holds him for his birthday photo:

Kate and Will released four photos of George on his third birthday, captioning that they "Can’t believe it’s been three years already!"

On George's 4th birthday, the Duke and Duchess of Cambridge opted for an official photographer to snap him at their home in Kensington Palace:

George celebrates his 5th birthday with photos taken the same day as brother Louis' christening: