After his university studies were finished in 1956, de Viguerie completed his
agrégation d'histoire in 1959. He then served in
Algeria with the French military from 1961 to 1962. De Viguerie completed his doctorate in 1973, and wrote his thesis on the activity of The activity of the religious congregation known as the
Priests of Christian Doctrine or
Christian Doctrine Fathers (in Latin
Congregatio Patrum Doctrinae Christianae), founded by the Saint
César de Bus (1544-1607) in 1592 for the religious instruction of children and of the poor. According to Raymond Darricau, the thesis constituted an enormous progress in our knowledge of the philosophical movement of the modern era". Many of De Viguerie's works focused on the Christian faith during the
Age of Enlightenment. In 1992, de Viguerie served on the scientific council of the
National Rally Party. De Viguerie was a professor emeritus at
Charles de Gaulle University – Lille III and a member of the
Consistori del Gay Saber. He served as president of the Magnificat Association. ==Works==