Complex sentence: List's image of the Armanenschaft's structure was based largely on his knowledge of Freemasonry, claiming that the ancient brotherhood had consisted of three degrees, each with their own secret signs, grips, and passwords.
Split into simpler sentences: List's image of the Armanenschaft's structure was based largely on his knowledge of Freemasonry. He claimed that the ancient brotherhood had consisted of three degrees, each with their own secret signs, grips, and passwords.