In a snippet of the upcoming BBC documentary, "Prince, Son and Heir: Charles at 70", Harry recalls asking his father to fill the shoes left by Markle's father, Thomas, who was unable to attend the wedding for health reasons.
Prince Charles has been spotted arriving at Lagos airport in Nigeria solo during what was expected to be a nine-day tour of West Africa by the royal couple.
A royal source told CNN that the prince wanted to put on the record once and for all that he doesn't plan to be a meddling monarch, adding that he sees the role as distinct from the one he is in now.
"If it's meddling to worry about the inner cities as I did 40 years ago", he said, "if that's meddling, I'm very proud of it". It also features interviews with the Prince's nearest and dearest including the Duke of Cambridge and the Duchess of Cornwall.
"I think that if he's a rebel king, the monarchy will be in danger and I think that is the great problem we face".
The documentary, titled Prince, Son and Heir - Charles at 70, airs in the United Kingdom on Thursday night, ahead of the royal's 70th birthday on 14 November.More news: Tesla says SEC subpoenaed Mannequin three manufacturing data
"Royal contributor Omid Scobie told Us Weekly magazine: "[Meghan wants to] bring up children who know the values of normal things in life. They see him as a very serious person, which he is. "I go, 'We only need one light, we don't need, like, six, ' and all of a sudden, it becomes a habit". But afterwards watching it on the television, I...
Speaking in detail about his future role as head of state the prince said: "You know, I've tried to make sure whatever I've done has been non-party political, and I think it's vital to remember there's only room for one sovereign at a time, not two".
"So, having more time with him at home would be lovely, and being able to you know play around, er, with the grandchildren".
"He will get down on his knees and crawl about with them for hours, you know making amusing noises and laughing and my grandchildren adore him, absolutely adore him", she says. 'Cause when he's there, he's brilliant.
When it is suggested some people have accused him of meddling over the years, the prince chuckled and said: "Really?"