One detail about Diana that always stood out was her height. At 5 feet 10 inches (1.78 meters), she was much taller than the average British woman—and about the same height as Charles. That might explain why both Prince William and Prince Harry are over 6 feet tall.
In 2017, a viral tweet pointed out that in official photos, Charles often looked much taller than Diana—despite being roughly the same height. Fans speculated it was intentional, while others were simply surprised by the illusion.

“Why Prince Charles Always Looked Taller Than Diana”
Though Prince Charles and Princess Diana were nearly the same height, many photos were staged to make Charles appear taller. In their engagement photo, he stood on a step above her. In others, Diana tilted her head, slouched, or avoided wearing heels to create the illusion.
Author Cohen highlighted this with photo comparisons on Twitter. Reports suggest this was done to fit the traditional view that men should be taller than their wives. Oddly, Diana—who often criticized royal rules—never publicly objected to this subtle manipulation.
