Hangdog Harry: I was a teenage organ donor, or something

“Two years older than me, Willy was the Heir, whereas I was the Spare,” the exiled prince wrote in explaining the title of his memoir, “Spare,” which was officially released Tuesday.

“I was the shadow, the support, the Plan B. I was brought into the world in case something happened to Willy,” he wrote of his 40-year-old brother and current heir to the throne, William.

He said he understood his role was to be a “diversion” and “distraction” from his brother — or to provide, “if necessary, a spare part” to him.

“Kidney, perhaps. Blood transfusion. Speck of bone marrow,” he added in morose detail.

[At the very least, we know Harry has spleen in excess. — Ed]