Britain's Prince George, the eldest son of Prince William and his wife Kate Middleton, turned eight today.

One day he will take over the throne from his father, but now he enjoys the most carefree childhood possible.

A new portrait of the prince has been shared especially for his eighth birthday.

His mother took the photo.

A new portrait of the prince has been shared especially for his eighth birthday.

His mother took the photo.

Photo: Duchess of Cambridge/Kate Middleton

George visited the final of the European Football Championship quite recently with his parents.

George visited the final of the European Football Championship quite recently with his parents.

Photo: BrunoPress

The prince has a sister and a brother: six-year-old Charlotte and three-year-old Louis.

The prince has a sister and a brother: six-year-old Charlotte and three-year-old Louis.

Photo: BrunoPress

Now the prince is still allowed to travel with his parents, but according to the official protocol, heirs to the throne are actually not allowed to travel together.

Now the prince is still allowed to travel with his parents, but according to the official protocol, heirs to the throne are actually not allowed to travel together.

Photo: BrunoPress

Prince George on his first-ever state visit to Australia in 2014.

Prince George on his first-ever state visit to Australia in 2014.

Photo: BrunoPress