JOHN**, a German historical writer, whose family name was Speichhammer. He was born at Schweinfurt in 1473, and died at Vienna in 1529. He was first physician to the Emperor Maximilian I., and was employed by that prince in several delicate negotiations. His works include *A History of the Roman emperors from Julius Caesar to the death of Maximilian I.*, 1519, fol.; *A History of Aus-*