https://www.universalfreemasonry.org/en/encyclopedia/brunswick-frederick-augustus-prince-of
BRUNSWICK, FREDERICK AUGUSTUS, PRINCE OF | Encyclopedia Masonica | Universal Co-Masonry
Born 1740, second son of Duke Charles I. In 1769 he affiliated with a Chapter of the Strict Observance; declared National Grand Master of Prussia, 1772, serving
frederick augustusbrunswickprinceencyclopediauniversal