The intruders entered a farm building on the castle estate last month and stole an Isuzu pickup and a quad bike, according to the local police.

Two suspects broke into a farm on the Windsor Castle estate, home to Prince William, Catherine, Princes of Wales and their family, last month.

King Charles and his wife Camilla were not in the estate at the time of the incident but Prince William and his family were believed to be at Adelaide Cottage, part of the Windsor Castle estate, the Sun reported.