Editing Protestant Union (section)

==References==
*{{cite book|last=Anderson|first=Alison D.|title=On the Verge of War: International Relations and the Jülich-Kleve Succession Crises (1609–1614)|publisher=Humanities Press|location=Boston|year=1999|isbn=978-0-391-04092-2|url=https://books.google.com/books?id=Zr4fQECz7wsC}}
*{{cite web|last1=Hofmann|first1=H.H.|title=The Protestant Union, 1608|website=The Crown & The Cross|date=n.d.|access-date=25 October 2012|url=http://www.oocities.org/athens/sparta/5414/ProtestantUnion.htm}}
*{{cite book|last=Schönstädt|first=Hans-Jürgen|title=Antichrist, Weltheilsgeschehen und Gottes Werkzeug. Römische Kirche, Reformation, und Luther im Spiegel des Reformationsjubiläums 1617|language=de|publisher=Steiner|location=Wiesbaden|year=1978|isbn=9783515027472|url=https://books.google.com/books?id=-0w4AAAAIAAJ}}
*{{cite book|last=Ward|first=Adolphus William|chapter=The Empire Under Rudolf II|title=The Cambridge Modern History, Volume III: The Wars of Religion|editor1-first=Adolphus William|editor1-last=Ward|editor2-first=George Walter|editor2-last=Prothero|editor3-first=Stanley|editor3-last=Leathes|publisher=Macmillan|location=New York and London|year=1905|chapter-url=https://books.google.com/books?id=etLPfP8KGwwC}}
*{{cite book|last=Wedgwood|first=Cicely Veronica|title=The Thirty Years War|publisher=Jonathan Cape|location=London|year=1938|isbn=9781590171462|url=https://books.google.com/books?id=O0TyV70C-KAC}}
*{{cite book|last=Wilson|first=Peter H.|title=The Thirty Years War: A Sourcebook|publisher=Palgrave Macmillan|location=Basingstoke|year=2010|isbn=978-0-230-24205-0|url=https://books.google.com/books?id=7wodBQAAQBAJ}}{{Dead link|date=September 2023 |bot=InternetArchiveBot |fix-attempted=yes }}