Prince Harryis opening up about the poignant moment he asked his dad to walkMeghan Markledown the aisle at their royal wedding in May.

Harry, 34, approachedPrince Charles, who celebrates his 70th birthday next week, to step in after Meghan’s father, Thomas Markle, wasunable to come to the Windsor Castle nuptials.

In the documentary,Prince, Son and Heir: Charles at 70,which airs on BBC Oneon Thursday, Harry says: “I asked him to and I think he knew it was coming and he immediately said, ‘Yes, of course, I’ll do whatever Meghan needs and I’m here to support you.’ ”

“For him that’s a fantastic opportunity to step up and be that support, and you know he’s our father so of course he’s gonna be there for us.”

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The wedding of Prince Harry and Meghan Markle, Ceremony, St George’s Chapel, Windsor Castle, Berkshire, UK - 19 May 2018

AsCharles led Meghan to Harry’s sideduring the historic ceremony at St. George’s Chapel, the prince turned to his dad and said, “Thank you, Pa.”

“I think that was very touching, sitting where I was, you couldn’t hear what he said. But afterwards watching it on the television, I… I think it was a very… it was a lovely gesture,” she says.

Of the emotional moment, Harry adds: “You’ve gotta say thank you. Just because he’s my father that doesn’t mean I can just sort of go, ‘Okay, that’s all, I’ll take it from here.’ ”

Then he quips, “Err, no, that is what I wanted to say but erm…and I was very grateful for him to be able to do that.”

Prince Charles and Camilla, Duchess of Cornwall, at Meghan Markle and Prince Harry’s May wedding.Jonathan Brady - WPA Pool/Getty Images

Prince Harry Marries Ms. Meghan Markle - Windsor Castle

“It’s the things he does behind the scenes that people don’t know about. I don’t think people realize quite how kind he is.”

source: people.com