Catherine, Duchess of Cambridge Kate Middleton
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Kate Middleton has enough monikers for an entire village.

The girl from England gained more than a few titles when she wed Prince William in 2011, including Her Royal Highness The Duchess of Cambridge, Her Royal Highness The Countess of Strathearn, Countess of Strathearn and Lady Carrickfergus, and even Princess William of Wales.

But what is she called when all the royal revellers leave, and it’s just her, her family and friends?

As insiders reveal, Her Royal Highness actually has two nicknames, one for friends and one for family. According to CafeMom, the duchess, who was born Catherine Elizabeth Middleton, was always known simply as Catherine by friends and family in her youth. But upon entering college at St. Andrews, her friends adopted the nickname Kate. So which name does her husband like to call her? As CafeMom reported, he prefers Catherine, too.

But, things got even more confusing recently after Catherine’s brother-in-law Prince Harry referred to her as “Cath” while giving an interview.

To help shed light on the naming debacle journalist Scott Mills asked the duchess which name she likes to go by asking, “Everyone calls you Kate, don't they?” The future Queen of England simply replied, “I will answer to most things.” How royally polite of her.

One name the Duchess will never have is princess.

As Good Housekeeping explained, the title of prince or princess only comes if you were born into the royal family. So while Prince William, Harry and George, along with Princess Charlotte, Eugenie and Beatrice, can enjoy the royal name Kate will simply have to wait to become Her Majesty Queen Consort Catherine VI when her husband eventually becomes king.