Since Prince William's engagement to Kate Middleton was announced, there has been much speculation about which titles the Queen will give them after their marriage.
Mandrake can disclose that the 28 year-old has, however, let it be known that he would prefer to remain Prince William rather than be made a duke.
"He says he was born Prince William and wants to continue to be known as that," says a courtier. "He wants Kate to become Princess Catherine."
This presents a thorny dilemma for the monarch, however, as princesses, traditionally, receive their titles through birth rather than marriage.
If Prince William is not given a new title, his 28-year-old bride will, automatically, become Princess William, not "Princesss Catherine". Although his late mother was often referred to as "Princess Diana", her correct title was the Princess of Wales. After her divorce, she became Diana, Princess of Wales.