Britain's ambassador to South Africa, Sir Robin Renwick, will be coming to Washington next summer to replace Sir Antony Acland, who is retiring as ambassador to the United States. Acland, who was the head of the British diplomatic service before coming here in 1986, will return home to become provost of Eton at the beginning of the private preparatory school's 1991 academic year. There are no firm dates yet as to when Renwick and his Corsican-born wife, Anne, will come to Washington or when Acland will leave. The 52-year-old Renwick, a career diplomat, "has a straight line to the prime minister in Downing Street," according to the Manchester Guardian.

Out and About

Hassanal Bolkiah, the sultan of Brunei, that tiny oil-rich nation in the South China Sea, is the world's richest man. It is the fourth consecutive year the sultan, who has a net worth of $25 billion, has topped Fortune magazine's list. With all the problems in the Persian Gulf, a safe 4,600 miles away, and rising oil prices, Bolkiah may find himself with even more money when next year's billionaires list is drawn up. Sheik Jabir Ahmed Sabah, Kuwait's ousted ruler, has a family fortune listed at $4.8 billion, much of it wisely in foreign investments. Queen Elizabeth, No. 4 on the list, remains the world's richest woman, with a fortune of $11.7 billion. King Fahd of Saudi Arabia and his family rank second richest, with $18 billion. Poor Donald Trump has been dumped from the list. He is now a mere millionaire, no longer eligible for the exclusive list of 182 individuals or families with assets of $1 billion or more ...

Conductor-composer Leonard Bernstein, who has been suffering from a series of respiratory ailments for the past several months, has canceled a six-city European tour. The maestro, who will be 72 on Saturday, was scheduled to tour with the orchestra from the Tanglewood Music Center, a summer training center in Lenox, Mass., for young musicians where Bernstein began his career in 1940. It was to have been the first time the orchestra performed outside Tanglewood and would have included concerts in Germany, Austria and Spain ...

A court battle is underway over the $50 million to $100 million in art and property left by actress Greta Garbo, who died in April at 84. Ake Fredriksson, a nephew from Oskelosund, Sweden, is seeking to overturn the reclusive star's will, which leaves her entire estate to a niece, Gray Reisfield, of New Jersey. Fredriksson's suit charges that Garbo was so addled by alcohol and illness during her last years that she was incapable of properly preparing a will ...

Arpad Goncz, the newly elected president of Hungary, will be in town next month to receive the first James Madison Constitutional Heritage Award of the National Trust for Historic Preservation. The award, which Goncz is to receive at a ball at the National Building Museum on Sept. 17, recognizes international and world leaders who reflect a commitment to furthering the principles of constitutional government as espoused by Madison ...

And the Elvis mystique goes on. An unidentified Canadian collector paid $7,400 at a Sotheby's auction in London yesterday for the King's 1952 driver's license, issued when he was a 17-year-old high school student in Tennessee. The license was tattered, but the faded signature was readable as were the vital statistics: blue eyes, brown hair, 5 feet 11 inches ...