The Queen admires the Duchess of Cambridge for adoring her grandson Prince William as himself, and not his title, a royal expert has said.
Biographer Andrew Morton, who has penned books on Princess Diana and Meghan Markle, says the monarch also spends time nurturing and supporting their relationship.
William and Kate met as students at St Andrews University in Scotland - and at times had a rocky romance before tying the knot 11 years ago.