Jean-Théophane Vénard was a French Catholic missionary to Indo-China. He was a member of the Paris Foreign Missions Society. He was beatified in company with thirty-three other Catholic martyrs, most of whom were natives of Tonkin, Cochin-China, or China. Pope John Paul II canonized him, with nineteen other martyrs, in 1988.

Jean-Charles Cornay, was a French missionary of the Paris Foreign Missions Society who was martyred in Vietnam. He was executed in Ha Tay, Tonkin, now Vietnam, during the persecutions of Emperor Minh Mạng.