Quân was born on January 26th, 1956. Quân's father is Sơn and his mother was Mai Lương. His paternal grandparents were Thục and Trạch Bùi. He had five brothers and two sisters, named Thạch, Thịnh, Chính, Giao, Thư, Tuyết and Thủy. He has a half-brother and two half-sisters, named Hòa, Thanh and Nhã.