Bertholet, Jean a French Jesuit, known principally by his history of the duchy of Luxemburg, was born at Salm in Ardennes, near the close of the 17th century. He entered the Jesuit order, and was appointed to a chair of elocution. For more than fifteen years he performed the functions of preacher, then gave his attention to history, and wrote a very important work entitled L'Histoire Ecclesiastique et Civile du Duche de Luxembourg
et du Comte de Chini (Luxemburg, 1741-43, with plans and maps). He was criticised for the manner in which he obtained some of his material. He died at Liege in 1755. He also. wrote Histoire de lInstitution de la Fete-Dieu (1746). See Hoefer, Nouv. Biog. Generale, s.v.