Preceptor of the Duke of Bourbon and the Count of Charolais, he pronounced the funeral oration of Louis XIV in 1715 and the panegyric of Saint Vincent de Paul in 1737 on the occasion of his canonization.
He was appointed Bishop of Bazas in 1724, confirmed on 29 January 1725, and was consecrated in March by Henri de Nesmond, Archbishop of Toulouse. He was the commendatory abbot of St. Martin, Autun, from 1708.
His collected works were published in 1745.
- Œuvres de messire Edme Mongin, évêque et seigneur de Bazas contenant ses sermons, panégyriques, oraisons funèbres, mandements et pièces académiques sur Google Livres, Paris, Claude-François Simon, 1745, p592.
- François Alexandre Aubert de la Chesnaye des Bois, Dictionnaire de la Noblesse, 2 vols
- Louis Moréri, Dictionnaire Historique, 1731, 1 vol. p. 52.