Reformation days of Martin Luther, political and national convictions again outweighed religious convictions in Europe. Two main tenets of the Peace of Westphalia, which ended the Thirty Years' War, were: The treaty also effectively ended the Papacy's pan-European political power. Pope Innocent X declared the treaty "null, void, invalid, iniquitous, unjust, damnable, reprobate, inane, empty of meaning and effect for all times" in his bull "Zelo Domus Dei". European sovereigns, Catholic and Protestant alike, ignored his verdict. The following outcomes of the Reformation regarding human capital formation, the Protestant ethic, economic development, governance, and "dark" outcomes have been identified by scholars:
Hessian War Peace Congress mediated by Duke Ernest of Saxe-Gotha and which resulted in a unification and peace treaty that was sealed in April 1648, ahead of the Treaty of Westphalia itself. Before the Westphalian Peace Treaty, Cassel fought one last time against the imperial side, winning the Battle of Wevelinghoven in the Rhineland, together with other Protestant troops. Darmstadt, however, was not involved in this battle. Under the Unification Treaty between Cassel and Darmstadt, Upper Hesse was permanently divided. Darmstadt had to give up a significant part of Upper Hesse to Cassel, not least Marburg and other occupied territories, including the