Page "George William, Elector of Brandenburg" Paragraph 4

During the Thirty Years ' War, George William tried to remain neutral between the Roman Catholic forces of the Holy Roman Empire and the Protestant principalities.

As his sister Maria Eleonora of Brandenburg was queen of Sweden, George William had to maneuver between requests of assistance from his Protestant brother-in-law King Gustavus Adolphus of Sweden and his own Protestant counsellors on one side and his Catholic chancellor Count Adam von Schwarzenberg on the other.