Simon has launched to be a comprehensive on-line encyclopaedia of royal residences in Britain., It has launched with its first 50 entries from Ampthill to Woodstock. Each entry contains a summary of the building’s history, a plan (so far as one can be discerned), an image and a list of further reading. Eventually there will be some 150 entries covering all known royal residences from the Saxons to the present day. Comments and corrections will be gratefully received.