PRINCE Charles will be joined by his companion Camilla Parker-Bowles during his visit to Marlborough tomorrow, it was revealed this week.

The prince's press office at Clarence House said it was not unusual for Mrs Parker-Bowles to join him on formal engagements and she had been with him on a number recently.

Mrs Parker-Bowles, whose home is at Reybridge, near Lacock, will be in Marlborough in her capacity as a trustee of the Bobby Van Trust.

Wiltshire has two Bobby Vans whose operators, Alan Weston and Rod Law, attend homes of crime victims and advise them on security.

Both men and their vans will be in the High Street near the Merchant's House during the royal visit. Mrs Parker-Bowles will make her way separately to the Merchant's House where she will join Prince Charles for a tour of the 17th century building which has been restored.

The couple will then view the two Bobby Vans. It is the only part of the prince's visit where Mrs Parker-Bowles will accompany him.

Prince Charles, whose visit is the highlight of the town's celebrations of the granting of its charter by King John 800 years ago, will arrive at Marlborough College at 10.45am.

At around 11.30am he will walk along the High Street to Waitrose, to see the new extension, and then visit the Merchant's House, before attending a reception in the town hall.