Princess Eugenie has thrilled royal fans by sharing sweet snaps of her husband, Jack Brooksbank, and her son August for Brooksbank's birthday.

Jack turns 35 and the first photo is the one that has royal fans swooning over baby August in a monogrammed cardigan and a white hat.

“You are exceptional.. Happy Birthday my love,” Princess Eugenie, 31, captioned the sweet post.

Fans rushed to wish Jack a happy birthday.

“Happy Birthday Jack how lovely to have your photograph taken with your baby son August on your special day," one wrote.

"Happy birthday Jack have a great day with your cute family," another agreed.

The sweet snaps come after Eugenie and Jack attended the funeral of Prince Philip last month.

“Dearest Grandpa,⁣ We all miss you.,” Eugenie wrote in a heartbreaking post following news of his passing.

“You would be so touched by all the tributes that have been shared with me the past few days. ⁣People remember sitting next to you at a dinner, or shaking your hand once, who remember you saying hello in passing, or remember how much their DofE award meant to them. ⁣

“I remember learning how to cook, how to paint, what to read. I remember laughing at your jokes and asking about your spectacular life and service in the navy. ⁣

“I remember incinerating the sausages and you swooping in to save the day.⁣ I remember your hands and your laugh and your favourite beer. ⁣I will remember you in your children, your grandchildren and great grandchildren. ⁣

“Thank you for your dedication and love for us all and especially Granny, who we will look after for you. ⁣With all my love ⁣Eugenie.”