As a 19th century emperor of this country, Minh Mang executed several French Catholic missionaries
When Tr began to imprison 
the... [DOC] [TLE] FranceVietnam relations - Wikipedia [PAR] FrenchVietnamese relations started as early as the 17th century with the 
mission of the Jesuit ... France was heavily involved in Vietnam in the 19th 
century under the pretext of protecting the work of Catholic missionaries in the 
country.