Charles Spencer posted a photo of the two plaques on the door. One of them was decorated with pink roses and the word "Diana" was written on it, and the other was decorated with blue roses and the word "Charles" was written on it.

Charles Spencer with sisters Sarah and Jane / Photo: Getty Images

In the caption, he wrote that these plaques hung on the doors of the children's bedrooms in his father's Park House home, where he lived for the first 11 years of his childhood. "I have to find the ones that say 'Sarah' and 'Jane'," he added.

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A post shared by Charles Spencer (@charles.earl.spencer)

Earlier, Charles Spencer said that Diana looked after him as a child, as she was three years older than him. "She said the worst part was hearing me cry in the hallway because she was afraid of the dark and couldn't come to me," he recalls in his book.

Princess Diana / Photo: Getty Images

Earl Spencer previously shared a rare photo of himself with his sister and their mother on his blog.