The Princess of Wales taking the spotlight delights husband Prince William - but there is one thing that bothers him, according to a royal expert.
During William's parents' ill-fated marriage, King Charles is said to have grown increasingly jealous of Princess Diana's massive popularity.
In the early days of their union, Charles would often be overshadowed by his wife, with crowds shouting to talk to Diana instead of the future king - leaving him reportedly "frustrated".
