Asked if his father’s diagnosis could have a “reunifying effect” on the family, Harry said: “Yeah, I’m sure. Throughout all these families I see it on a day-to-day basis the strength of the family unit coming together. I think any illness, any sickness brings families together.”

A film crew led by Will Reeve, the son of the late Superman star Christopher Reeve, has been following Harry and Meghan around since they arrived in Canada on Tuesday before the Invictus Games in Whistler and Vancouver.