The party was exclusively organised by the Duchess of York.
Harper’s parents shared some images of the special day on social media, as they wished her a happy birthday on Monday, reports dailymail.co.uk.
Harper was invited with her friends to attend the extra special tea party which was held in a small drawing room last week. The little girl cutely stood in the grounds of the palace holding a balloon for one photo.
She wore a stylish blue fairytale gown to mimic Elsa from “Frozen” for the special day.
Victoria posted the image, writing: “Our little birthday princess.”
She posed with her adorable friends and Princess Eugenie, with David posting the image to Instagram.
He happily wrote: “Lucky Harper, meeting a real-life princess at the Palace.”
Harper’s brother Cruz, 12, also wrote: “Dear Harper, I can’t believe it has been already 6 years. You are such a big girl so to the best sister in the world. I love you so much. Have a amazing day.”
