Technically DY's biological father was the most legitimate claimant to the throne, so those within the family would not make a fuss out of it. When MWQ and ZL became his concubines they were Duan royal family so if an elder was to secretly teach them the family skill it would not have been much of a scandal.
When King Deun Jing Ming discovered that Great Evil # 1 was the former Prince Deun Yin Hing, the Baoding Emperor was eager to give Prince Yin Hing his rightful place on the throne. The only reason that Baoding did not do so is because Yin Hing had become a wulin menace. It had nothing to do with the bloodline, which was proper, but with Yin Hing's character. Deun Yu came from that bloodline, but was of suitable character.
OT: So basically these two parts are important. I suspect DY's father was attacked by the Yang side and then disappeared.
12. Duan Lianyi (? - 1080)
Son of Silian. Succeeded his father as King of Dali in 1075, but was killed by minister Yang Yizhen in 1080. Duan Lianyi was known as Emperor Shangde.
NOTE: Duan Lianyi is the father of Duan Yanqing (Leader of the Four Villains) of DGSD.
13. Duan Shouhui
Nephew of Lianyi. When his uncle was murdered by Yang Yizhen who tried to usurp the throne, the Gao Family attacked Yang and killed him. The head of the Gao Family, Gao Zhisheng, then supported Duan Shouhui to become king in 1080. Shouhui was only a puppet-king, for all the real power lies in the hands of Gao Zhisheng. In the same year, he abdicated in favour of his cousin Duan Zhengming. Shouhui himself, who was titled Emperor Shangming, became a monk at the Celestial Dragon Temple.
First, thanks to Ken for bumping all these stuff into a new thread.
Did any of the series happen how Duan Yanpqng was injured?
OT: To think about it, MWQ and ZL married their uncle.
My bad - yes, they are cousins.
i wonder whether the Gao family went to look for Duan Yanqing after they defeated the Yang side.
Now, I am wondering whose son succeed DY. MWQ, ZL or Xiao Lei?