Yu Ziyuan (虞紫鸢, Yú Zǐyuān) was the wife of the former leader of the Yunmeng Jiang Sect, Jiang Fengmian, and the mother of Jiang Cheng and Jiang Yanli. She also went by the titles Madam Yu (虞夫人, Yú fūrén) and the Violet Spider (紫蜘蛛, Zǐ Zhīzhū).

(Source: Mo Dao Zu Shi Wikia)