Originally Posted by
pannonian
AFAICS, Xuzhu is deemed to be the sworn brother of Xiao Feng because Duan Yu swore brotherhood with Xiao Feng, and later swore brotherhood with Xuzhu, without Xuzhu and Xiao Feng havng sworn brotherhood together. By the same reasoning, would Guo Jing be the sworn brother of Wang Chongyang via Zhou Botong, and Xuzhu and Duan Yu be the sworn brother of Yelu Hongji via Xiao Feng?
Also, Zhou Botong learnt his martial arts from Wang Chongyang. If so, why would Zhou Botong be the martial brother of Wang Chongyang, rather than his disciple? Similarly with Yin Liting and Muo Shenggu, neither of whom were directly taught by Zhang Sanfeng, but who are ranked in the second generation of Wudang.