Fengmian Jiang

Jiang Fengmian (江枫眠, Jiāng Fēngmián) was the former leader of the Yunmeng Jiang Sect and the father of Jiang Cheng and Jiang Yanli. He took in Wei Wuxian and considered him as his own child.

(Source: Mo Dao Zu Shi Wikia)