Princess Diana’s Brother, Charles, Looks Like Prince Harry in Rare Childhood Photo from the ’70s

Princess Diana's younger brother, Charles Spencer, runs an Instagram account that is practically a treasure trove of royal family history.

Although the 9th Earl Spencer spends most of his time writing bestselling historical fiction, he loves to use his social media accounts to share vintage family photos and other artifacts that he finds. Throughout the past year, Spencer has treated followers to old photos of Princess Diana and even given glimpses into the home that they shared as teenagers (where he still resides now).

For his latest post, Spencer decided to share a photo of himself at the age of 12. And from the looks of it, it seems that the earl has been a history buff since he was a kid.

In the caption, Spencer said, “Getting in some early research on my 2004 book, BLENHEIM - this was me, getting to grips with the battle and period in 1976.” The photo shows the young earl reading a book titled The Battle of Blenheim: August 13, 1704.

However, what we couldn't get over is how much Spencer resembles a younger version of his nephew, Prince Harry.

Although the earl currently has a whitish-blonde hair color, we can see that as a tween, he rocked a bright red 'do. Spencer's red hair and flushed, freckle-covered cheeks are very reminiscent of the Duke of Sussex, who looked quite similar when he was an adolescent.

For instance, if we look at this vintage photo of Prince Harry at the age of 11, we can see a strong resemblance between the two.