Marie-Théodore Ratisbonne, N.D.S., was a French Jewish convert to the Catholic Church, who became a priest and missionary and who later founded the Congregation of Our Lady of Sion. He was the brother of Marie-Alphonse Ratisbonne, who joined him in this effort.
- Occupation
- Catholic priest, writer, preacher, jurist
- Position held
- protonotary apostolic, superior general, abbot
- Citizenship
- France
- Born
- December 28, 1802, 1802
- Died
- January 10, 1884
