From 1438 the Habsburg dynasty, who had acquired control in the south-eastern empire over the Duchy of Austria, Bohemia and Hungary after the death of King Louis II in 1526, managed to permanently occupy the position of the Holy Roman Emperor until 1806 (with the exception of the years between 1742 and 1745). However, this strict policy of dynastic rule over a vast multi-ethnic territory, prevented the development of concepts of patriotism and unity among the empire's territorial rulers and a national identity as in France and England.