<p>The Windsors are England's most famous family, but what are they really like when they're out of the public gaze? Behind closed doors in every Royal residence, from Buckingham Palace to Clarence House, there are two families - one upstairs and one down - and nobody knows a Royal quite like a Royal servant, intimately acquainted as they are with every quirk, foible and eccentricity. And there are a fair few! This is the inside story of the Roya...