Augustin Schoeffler was a French saint and martyr in the Catholic Church and a member of the Paris Foreign Missions Society. He was a priest in Lorraine who joined the Foreign Missions of Paris. He worked as a missionary to Indochina and was one of two French missionaries killed in northern Vietnam between 1847 and 1851. At the time, it was illegal to proselytise in Vietnam.
Jean-Louis Bonnard was a French Roman Catholic missionary to Vietnam, one of the Martyrs of Vietnam, canonized in 1988.
Vietnamese Martyrs, also known as the Martyrs of Tonkin and Cochinchina, collectively Martyrs of Annam or formerly Martyrs of Indochina, are saints of the Catholic Church who were canonized by Pope John Paul II. On June 19, 1988, thousands of overseas Vietnamese worldwide gathered at St. Peter's Square for the celebration of the canonization of 117 Vietnamese Martyrs, an event organized by Monsignor Trần Văn Hoài. Their memorial in the current General Roman Calendar is on November 24 as Saint Andrew Dung-Lac and Companions, although many of these saints have a second memorial, having been beatified and inscribed on the local calendar prior to the canonization of the group.