Royal engagements

TODAY: The Princess of Wales attends the Wales Festival of Remembrance at St David's Hall, Cardiff. TOMORROW: The Prince of Wales begins an official visit to Saudi Arabia, Abu Dhabi and Dubai. The Princess of Wales, Patron, the Benesh Institute and the Huntingdon's Disease Association, attends a Gala Evening at Her Majesty's Theatre, London SW1. The Princess Royal, Patron, National Association of Victims Support Schemes, attends an Annual General Meeting, Methodists Central Hall, London SW1. Princess Margaret opens the Royal Agricultural Winter Fair and undertakes other engagements in Toronto, Canada. Prince Michael of Kent, President, Royal Automobile Club, takes part in the Veteran Car Run from London to Brighton.

The Queen's Gallery

TODAY: The Queen's Gallery at Buckingham Palace opens between 10am and 5pm. TOMORROW: The Queen's Gallery opens between 2pm and 5pm.

Changing of the Guard

TODAY: The Household Cavalry Mounted Regiment mounts the Queen's Life Guard at Horse Guards, 11am. TOMORROW: The Household Cavalry Mounted Regiment mounts the Queen's Life Guard at Horse Guards, 10am; 1st Battalion Irish Guards mounts the Queen's Guard, at Buckingham Palace, 11.30am, band provided by the Scots Guards.

Windsor Castle

TODAY and TOMORROW: The Precincts at Windsor Castle open between 10.30am and 4pm.