Justel, Henry a French Protestant canonist, son of Christopher Justel (q.v.), was born at Paris in 1620. He succeeded his father as secretary and counsellor to king Henry IV. He appears to have foreseen the coming revocation of the Edict of Nantes (1685), and went to London in 1681. He was there appointed librarian of St. James, and retained that situation until his death Sept. 24, 1693. He had sent to the University of Oxford, by his friend Dr. Hickes, the original Greek MS. of the Canones Ecclesioe universalis, and received in return from that institution the degree of LL.D. in 1675. He was a friend of Locke and Leibnitz, and corresponded with most of the learned men of his day, by all of whom he was highly esteemed. His principal work is his edition of Christopher Justel's (see above) Bibliotheca juris canonici veteris. See Chauffepie, Nouv. Dict. Histor. et Crit.; Dupin, Bibliotheca des Auteurs Eccles. — Hoefer, Nouv. Biog. Générale, 27, 289.