Sơ's father was Hựu and his mother was Đông Trần. His paternal grandparents were Yến Nghiêm-xuân and Duân Nguyễn. He had a brother and three sisters, named My, Chiên, Quơn and Chưa. He had a half-brother and five half-sisters, named Thúc Cái, Kha, Tu, Co, Ngu and Nho. He died due to giỗ 15/3 âm lịch.