Prince Harry says his father did not hesitate to step in after the Duchess of Sussex's father pulled out of walking her down the aisle in May.
Thomas Markle decided not to travel from his Mexico home after being humiliatingly exposed for colluding with a paparazzi photographer in the run-up to the nuptials.
When it became clear that Meghan wouldn't have her reclusive father to support her, Harry went to his, according to the Daily Mail.
Speaking in a documentary to mark Charles' 70th birthday, 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".