Francis Joseph wore the double crown created by Charlemagne a thousand years before, and was Emperor of Rome as well as of Germany.

It had become an empty title; but it was the sacred tradition of a Holy Roman Empire, the empire which had dominated the world during the Middle Ages, and while Europe was coming into form.

Napoleon was ploughing deep into the soil of the past when he told Francis Joseph he must drop the title of Emperor of Rome! And it is a startling indication of his power that the emperor unresistingly obeyed; the logical meaning, of course, being that he, already King of Italy, was the successor to Charlemagne and the head of a new Roman Empire.
England, never having felt the touch of this insolent conqueror upon her own soil, was still the bitterest of all in the coalition, and was more indignant over the humiliation of Germany than she seemed to be herself.

Prussia, at last reluctantly opposing him, was defeated at Jena, 1806, a time during which the beautiful Queen Louise was the heroine, and the one brave enough to defy him; and then the peace of Tilsit, 1807, completed the humiliation of the kingdom created by the great elector.
It would seem that the people as well as the armies of Germany were captured by this man, when we hear that ninety German authors dedicated their books to him, a servile press praised him, and one of Beethoven's greatest sonatas was inspired by him.

But a man so colossal and dazzling could only be accurately measured at a distance.