Jean-Marie Robert de La Mennais, FICP (or de Lamennais; 1780–1860) was a Breton Catholic priest and brother of the philosopher Felicité Robert de Lamennais, whom he influenced in their youth. He was a leading figure in the revival of the Catholic Church in France after the French Revolution, involved in founding three religious institutes as part of this effort. Pope Paul VI proclaimed him to be Venerable in 1966 and his cause of canonization is ongoing. Source: Wikipedia (en)