Windsor will be joined by 60 scouts at a dressed trestle table enjoying a Big Jubilee Lunch.
The event aims to encourage as many people in the UK to have lunch with their neighbours, friends and family on Sunday 3rd June 2012. It is part of the celebrations for The Queens Diamond Jubilee.
More top news
A new planet which could contain life has been discovered close enough to Earth to be reached by future space missions.
Crisis talks are being held over fears that trainee Catholic priests in Ireland are using the gay dating app Grindr.
Patience Chukwu was dragged along the street and punched repeatedly in the face near Homerton Hospital in east London.