Around 1900 PD, Saint-Just was married and had two children. As First Undersecretary for Internal Security, he was the second highest-ranking man in the People's Republic of Haven's security apparatus. He managed to bring the support of some Internal Security officers to the plot led by Rob S. Pierre and Cordelia Ransom. Following the murder of Secretary Palmer-Levy, he became the last Secretary for Internal Security of the Legislaturist regime, aiding in the assassination of Hereditary President Harris. (HH3)