Title: "Œcuménisme" au XIXe siècle
Subjects: Correspondence, Sources, Christian union, Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ, Jesuits, Catholic Church, Relations, History, Russkai͡a pravoslavnai͡a t͡serkovʹ
Places: Russia
People: J. Gagarin (1814-1882), Joannes Philippus Roothaan (1785-1853), Petrus Johannes Beckx (1795-1887)
Time periods: 19th century