姜榆罔的祖父是[[神农氏]]政权第六任帝[[姜来]]的儿子[[姜节茎]]。父亲是神农氏政权的七任帝[[姜衰]]。<ref name="百度帝榆罔">{{cite news|url=https://baike.baidu.com/item/%E6%A6%86%E7%BD%94| title = 帝榆罔簡介 | language=zh | date= | publisher=百度百科 | author= | accessdate=2019-2-14 }}</ref>