Princess Kate "means more to James Middleton than an Instagram post", the younger brother of the Princess of Wales has stated.
James, 37, has written a new book titled "Meet Ella", where he has opened up about his two older sisters, his parents and his mental health journey.
In a new interview to promote the book, the father-of-one explained the love he has for his older sister, Princess Kate.
He said: “We are a close family. It is always important to have support around you and not do things alone.
Princess Kate 'means more to James Middleton than an Instagram post'PA"Sharing it does help bring people together."
He continued to tell People Magazine: "My love and support for my family is more than just an Instagram post.”
The Instagram post which James mentioned was made after Kate announced she was diagnosed with cancer earlier this year.
The Princess of Wales made a video from her home in Adelaide Cottage in March where she announced she was beginning a course of preventative chemotherapy.
James Middleton posted this childhood image of himself and Kate on Instagram back in MarchInstagram / James MiddletonJames subsequently took to social media with a childhood post of himself and his older sister.
He captioned the post: "Over the years, we have climbed many mountains together.
"As a family, we will climb this one with you too."
Earlier this month, Kate confirmed she had completed her chemotherapy treatment.
James Middleton also commented underneath his sister's Instagram post when she confirmed she'd be attending Trooping the Colour
Instagram / James MiddletonLATEST ROYAL NEWS:
James Middleton's new book is named after his dog EllaInstagram / James MiddletonShe released a new video that featured Prince William, Prince George, Princess Charlotte, Prince Louis, Carole Middleton and Michael Middleton.
In the video, Kate described how difficult the past nine months had been for her family and expressed “relief” at completing her course of treatment.
She said: "As the summer comes to an end, I cannot tell you what a relief it is to have finally completed my chemotherapy treatment."
Kate added: “Doing what I can to stay cancer-free is now my focus."