Cai Yong
Yang Huiyu was the daughter of Yang Chen and Lady Cai. She had two brothers: Yang Cheng (elder) and Yang Hu (younger). Yang Chen's father was Yang Xu. Lady Cai had a sister, Cai Wenji, and their father was Cai Yong. Yang Huiyu did not have any sons with Sima Shi. It is not known if she bore him any daughters.