The Queen’s granddaughter treated royal fans to a rare insight into her and Princess Beatrice’s childhood with a heartfelt Instagram post. The video, posted on Sunday evening, compiled several photographs of the two royals when they were younger as well as more recent snaps.

       Eugenie’s caption read: “Happy Birthday to my big sissy..

       “BeaBea you are sensational and I have loved every minute watching you be brave and true... and you… and now a mummy to be.”

       She then signed off the message with a smiley face and #iloveyou.

       The video also featured the song This Is Me from musical drama film The Greatest Showman.

       Princess Beatrice was inundated with well-wishes as fans took to the post’s comment section to send her birthday messages.

       One person wrote: “Happy Birthday, princess Beatrice!

       “It is wonderful to see the love of real sisters like you.”

       Another fan said: “The bond of sisters is truly beautiful. I too love my big sis dearly.”

       A third commenter added: “Eugenie AND Beatrice are The Greatest Showman fans?