Đắc was born on July 5th, 1942 in Hà-nội. Đắc's father was Đĩnh and his mother was Lai Phạm. His paternal grandparents were Tiên and Tuất Nghiêm phú. He had three brothers and three sisters, named Thiên, Bắc, Tài, Tố-Lan, Lai-Hà and Lê-Cư. He is the oldest of the seven children.