Princess Eugenie's son, August Brooksbank, just turned four years old, and she's marking the occasion with a special Instagram tribute. On her official account, the royal, who shares August with her husband,

Princess Eugenie's son August turned 4. To celebrate the special occasion, Princess Eugenie shared an Instagram post featuring a number of photos and video clips. One of the videos revealed that August seems to share an important interest with Prince George.

PRINCESS Eugenie took to Instagram to give fans a rare glimpse into her family life.  In her adorable post, she celebrated her son Augie’s fourth birthday and sent her followers wild.

To celebrate her son's fourth birthday, Princess Eugenie has posted a heartfelt tribute to August on her Instagram page in the form of a video montage. The montage is a series of intimate pictures of Eugenie alongside her husband, Jack Brooksbank, and their young family.

The daughter of Prince Andrew and Sarah Ferguson paid a heartfelt tribute to her son August, who the princess described as ‘full of adventure and speed’