Britain's Prince William and his long-time  girlfriend Kate Middleton don't seem to be in any hurry to get married, but ultimately when do they will not need to look far for help planning the wedding ceremony.

According to sources, the Firm, as the Duke of Edinburgh refers to the Royal family, has appointed a wedding planner.

Sarah Sienesi, a 'wedding and event consultant', has secretly been hired as a lady-in-waiting to the Countess of Wessex.

She is an old Fulham flatmate of the Earl of Wessex's wife from the days when the countess was a PR executive known as Sophie Rhys-Jones.

"It's no longer seen as lazy or extravagant to hire someone to help you organise your wedding," the Telegraph quoted Sarah as saying.

She added: "People get their groceries delivered at home and employ cleaners, so why not have someone with insider knowledge do your groundwork on the big day?"

Sophie Rhys-Jones tied the knot with Prince Edward at St George's Chapel, Windsor, in 1999.

The Earl and Countess of Wessex, as they became, have two children, Lady Louise Windsor and Viscount Severn.