Butler training: How to be a gentleman's gentleman
27 March 2012 Last updated at 09:17 BST
The Royal Household is advertising for a trainee butler - or footman - to provide "the highest standards in the service of wine, food, valeting, messenger duties and reception".
The role pays £15,000 per year for a 45-hour week, mostly at Buckingham Palace, but with up to three months a year at other royal residences.
John Maguire went to find out what is involved in being a top-class butler.