Britain's Duke and Duchess of Cambridge celebrated their first wedding anniversary by attending the nuptials of their close friends.

The royal couple went to the wedding of Duchess Catherine's old school friend Hannah Gillingham and Robert Carter at St. Andrews Church in Wingfield, Suffolk, on Saturday (28.04.12), almost exactly 12 months on from their own April 29 nuptials.

Guests included many of the same close friends who attended Prince William and Catherine's wedding at London's Westminster Abbey last year as well as Catherine's sister Pippa Middleton.

Royal photographer Mark Stewart, who was present, told People: "The guests made it feel like a re-run of the royal wedding as they had so many of those people who matter the most to them there."

William and Catherine - who is also known by her maiden of Kate Middleton - then spent their actual anniversary at their farmhouse home in Anglesey, north Wales.

Sources say they were keen not to do anything too high-profile because of the uncertain economic climate in the UK at the moment.