The legends of the Northern Sung military hero Yeung Yip and his sons are set during the Northern Sung Kingdom's wars against the Khitan Liao Empire, as is the story of DGSD. Was the story of DGSD meant to be contemporaneous with the Yeung Family Corps legends? I remembered that a "General Yeung" was mentioned in passing during the Beggar's Union meeting in which Kiu Fung's Khitan heritage was first exposed, but I do not know if this General Yeung referred to Yeung Yip or any of his sons.