Ferdinand II’s reign is regarded as a turning point in Habsburg history. He rebuilt Habsburg power in Central Europe and changed decisively the region’s religious and political complexion. He restored Catholicism to a large part of his dominions and broke the power of the diets and nobility in the Austrian and Bohemian lands. ‘In the service of the faith: 17th and 18th centuries’ outlines his rule and the work of his immediate successors. It also describes the ‘Thirty Years War’ (1618–48), the Peace of Westphalia that ended the conflict, and the end of the Habsburgs’ global empire with the death of Charles II of Spain in 1700.