Don't let his tiny, polite demeanor fool you: Jin Guangyao has a near perfect memory and holds grudges - especially against those that keep reminding him that he's the son of a whore - for a loooong time. GuangYao is kind of a softie for XiChen, though.
"LianFang-Zun was the current leader of the LanlingJin Sect - Jin GuangYao, the only illegitimate son whom Jin GuangShan approved of. He was Jin Ling’s youngest uncle, being half-blooded brothers with both Jin Ling’s father, Jin ZiXuan, and Mo XuanYu"
Kills a lot of people. Killed by Lan Xichen, with a mislead by Nie Huaisang.