HER DAY BEGINS AS IT DOES FOR MANY mothers—with a call to her daughter. “Your Majesty? I have Her Majesty, Your Majesty,” says the Buckingham Palace operator. But last week Queen Elizabeth II, 59, and her sister Princess Margaret, 55, beat the Queen Mother to the punch with a message of their own: Happy 85th birthday, Mummy!
They joined her at Sandringham Castle, 100 miles north of London, where more than 6,000 rain-soaked admirers turned out to deliver cards and bouquets picked from backyards across England. Later the Queen Mum attended services at a nearby chapel, where Russian cellist Mstislav Rostropovich, having flown in from Monte Carlo for the occasion, played “Happy Birthday.” Two days later she was treated by British Airways to a twice-around-the-island spin in a Concorde,…