The crisis came from abroad - as Kossuth expected - and he used it to the full. On 3 March 1848, shortly after the news of the revolution in Paris had arrived, in a speech of surpassing power he demanded parliamentary government for Hungary and constitutional government for the rest of Austria. He appealed to the hope of the Habsburgs, "our beloved Archduke Franz Joseph" (then seventeen years old), to perpetuate the ancient glory of the dynasty by meeting half-way the aspirations of a free people. He at once became the leader of the European revolution; his speech was read aloud in the streets of Vienna to the mob by which Metternich was overthrown (13 March), and when a deputation from the Diet visited Vienna to receive the assent of Emperor Ferdinand to their petition it was Kossuth who received the chief ovation.