Friedrich's regency over Tirol and the scattered Habsburg territories in southwestern Germany and in the Alsace referred to collectively as Vorderösterreich began in 1402. The early years of his reign were marked by external and internal conflicts. He had to overcome the opposition of the local nobles in 1406/07, and had to deal with the independence movement in Appenzell, which became a protectorate of the Old Swiss Confederacy in 1411.
When he sided with Antipope John XXIII at the Council of Constance, emperor Sigismund banned him. Thanks to the support of the local poulation he managed to keep Tirol, but he lost the Aargau, the old homeland of the Habsburgs, to the Swiss.
By 1425, his rule over Tirol had stabilized, also due to successful beginning of silver mining that brought an increase in prosperity to the region.
NB: Maria Theresa of Austria, Habsburg heiress and wife of emperor Francis I Stephen, reigned as Archduchess of Austria and Queen of Hungary and Bohemia 1740 - 1780
Holy Roman Emperor Maximilian II Maximilian II of the Habsburg dynasty was born in 1527 at Vienna and died in 1576 in Regensburg.
Albert II Habsburg (August 10, 1397 - October 27, 1439), German ruler, king of Bohemia and Hungary, and (as Albert V) duke of Austria, was born on August 10, 1397, the son of Albert IV of Habsburg, duke of Austria.