Royal Engagements

TODAY: Princess Margaret, President, the Guide Association, attends the North East England Guide Association Advent Service in York Minster. TOMORROW: The Duchess of Gloucester, Patron, Scottish Opera, attends a Gala Concert, at the Palace of Holyroodhouse, Edinburgh.

Changing of the Guard

TODAY: The Household Cavalry Mounted Regiment mounts the Queen's Life Guard at Horse Guards, 11am; Nijmegen Company Grenadier Guards mounts the Queen's Guard, at Buckingham Palace, 11.30am, band provided by the Scots Guards. TOMORROW: The Household Cavalry Mounted Regiment mounts the Queen's Life Guard at Horse Guards, 10am.