By the time of the Danubian Revolution, Habsburg power had become regarded as an almost permanent fixture of European life. They had controlled the Holy Roman Empire since the middle of the 15th century and reigned over, at their peak, from Balboa in the West to Lviv in the East and from Amsterdam in the North to Syracuse in the South. Equally, however, the house of Habsburg had been on a seemingly inexorable decline, having lost all of her territories outside of Central Europe, and with her domination of Germany under severe pressure by the Prussians in the North.