Princess Eugenie just celebrated her 31st birthday so on her Instagram account, she thanked fans for the numerous congratulations and surprised her followers with new pictures of son August. In the caption, she wrote, "Thank you for the birthday love yesterday... I got the best present I could have asked for!!"

In the first picture, you can see Princess Eugenie and her husband Jack Brooksbank (34) together with the six-week-old August. The new parents are beaming and couldn't be happier.

Eugenie is holding her son, who is dressed in a cute cardigan with his name embroidered on it. The second picture shows Jack from behind, holding the little one in his arms. Here you can see August's sleepy eyes as he looks into the camera. 

Princess Eugenie's Sweet Son 

Often Princess Eugenie shared cute pictures of her baby. The first photo that appeared on her Instagram account shows the hands of Eugenie, Jack, and August. She then shared another family photo, which she used to reveal the full name of her offspring: August Philip Hawke.  

On March 14th, the British celebrated Mother's Day so Eugenie uploaded another photo of August. The princess is completely in love with her role as a mother and we can't wait to watch him grow up!

Little August will be in good company too, considering Eugenie's cousin Zara Tindall just gave birth to Lucas Philip Tindall and her close cousin Prince Harry is expecting his first daughter! 

Jack Brooksbank and Princess Eugenie

Test your knowledge!

When was their first child born?