 In 1437 at the Blackfriars, Perth, the playing of tennis indirectly led to the death of King James I of Scotland, when the drain outlet, through which he hoped to escape assassins, had been blocked to prevent the loss of tennis balls.James was trapped and killed.Francis I of France (1515–47) was an enthusiastic player and promoter of real tennis, building courts and encouraging play among the courtiers and commoners.