The often controversially assessed cardinal and statesman Richelieu has profoundly shaped the history of France and left deep marks on the history of Europe long after his death. Klaus Malettke presents a new, comprehensive biography after decades of research on Richelieu and his era. The author addresses the life and actions of the man, theologian, and statesman in both positive and critical aspects. A significant portion of the work is dedicated to the foreign policy actions of "Principal Minister" Richelieu during the phase of "open war" from 1635 to 1642. Malettke particularly illuminates the statesman's ideas about establishing a comprehensive peace in Europe and its lasting preservation through the realization of a system of collective security. He also discusses the propaganda developed by Richelieu and his followers.