In his book, King Charles III: The Inside Story, author Robert Hardman reveals that King Charles thinks highly of his daughter-in-law, the Princess of Wales.
Kate has been part of the royal fold for a long time, having known her husband, Prince William, since their university days. She married William in 2011 and has been a full-time working royal ever since.
King Charles, Princess Kate and Prince William in 2013 (@ Getty Images)
Writing in his book, Hardman notes: "'[Charles] thinks Catherine is doing a wonderful job, not just with her royal duties but also bringing up his grandchildren,' says a friend."
Kate is close to her father-in-law King Charles (@ Getty)

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