If, as doctors like to say, a man is as old as his arteries, King George VI was older than his years. Never robust, he spent uncounted hours standing stiffly at public ceremonies or walking before endless review lines. The strain of these activities was bad for a man with circulatory trouble. Because of his medical history, the King's death from a coronary thrombosis (a blood clot blocking the artery on which the heart's muscle depends) was no surprise to medical men.
The world first heard of the King's artery trouble in 1948, when he gave up public appearances because of pain...