Archduke John accepted the nomination as head of the short-lived German Empire on 5 July 1848, and on 12 July the delegates of the Federal Convention, in response to public pressure, ceded their powers to him. On July 15, the day he left for Vienna, the Regent appointed the ministers Anton von Schmerling, Johann Gustav Heckscher and Eduard von Peucker to office, completed by Prince Carl of Leiningen as minister president and head of government. Nevertheless, his political office did not offer many opportunities, though all laws had to be signed by him.