Kate Middleton confirmed into Church of England

Kate Middleton has been confirmed into the Church of England.

The Bishop of London counselled the future princess - who will marry Britain's Prince William on April 29 - in a series of private meetings at St James's Palace, and was confirmed on March 10.

A representative for the palace revealed Kate, whose soon-to-be husband will be the head of the church upon his ascension to the British throne, had undertaken the affirmation "as part of" the preparations for her wedding.

The spokesperson said: "Catherine Middleton was confirmed by the Bishop of London at a private service at St James's Palace attended by her family.

"Catherine, who was already baptised, decided to be confirmed as part of her marriage preparations."

However, a source has claimed the decision has little to do with the wedding and more to do with her own "personal choice" about the faith.

An insider told Britain's Daily Express: "There won't be a communion at the wedding. It's difficult to fit it into a Royal Wedding ceremony.

"This is a matter of personal choice. It's something she's been thinking about. It was a decision she came to after spending time with the Bishop of London, preparing for the wedding."

Kate was christened when she was five months old at St. Andrew's Church in Bradfield, Berkshire.