Bật was born in 1919. Bật's father was Hồ and her mother was Can Nguyễn Hữu. Her paternal grandparents were Mạnh Cung and Hoan (Loan) Đỗ. She has three brothers and two sisters, named Ban, Hoan, Ký, Bột and Tham. She is the second oldest of the six children.