On the occasion of the holiday, the Princess of York shared a new photo of herself with her youngest son Ernest on her Instagram blog.

Evgenia holds a little boy in her arms.

In the caption to the picture, she wrote:

"The best gift is my boys... so on this birthday I appreciate my family and loved ones," she captioned the photo with three red hearts.

The Princess of York is pictured wearing a ribbed dress by Reiss, wearing a cream Emily-London Headwear headband, several gold chains around her neck, and emerald earrings in her ears.

View this post on Instagram

A post shared by Princess Eugenie (@princesseugenie)

Eugenia and her husband, Jack Brooksbank, have two sons - the eldest son, August, and the youngest, Ernest.

Princess Eugenia and Jack Brooksbank / Photo: Instagram of Princess Eugenia

We will remind you that on Eugenia's birthday, we told you ten facts about the granddaughter of Queen Elizabeth II.