Prince William says protecting his family was the most important thing for him when his wife Kate and father King Charles became ill, and has revealed he will seek to modernise the monarchy when he becomes sovereign.

Speaking to Eugene Levy for the Canadian actor's TV travel show, the normally guarded British heir said he sometimes felt "overwhelmed" by family matters and vowed to keep his children safe from any excessive intrusion by the media.

"Worry or stress around the family side of things, that does overwhelm me quite a bit," the 43-year-old told the Schitt's Creek star.

"When it's to do with family and things like that, then that's where I start getting a bit overwhelmed - as I think most people would, because it's more personal."

Last year both Princess Catherine and the king,

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