Marcel François Marie Joseph Lefebvre was a French Catholic archbishop who influenced modern traditional Catholicism. In 1970, five years after the close of the Second Vatican Council, he founded the Society of Saint Pius X (SSPX), a community to train seminarians in the traditional manner, in the village of Écône, Switzerland. In 1988, Pope John Paul II declared that Archbishop Lefebvre had "incurred the grave penalty of excommunication envisaged by ecclesiastical law" for consecrating four bishops against the pope's express prohibition but, according to Lefebvre, in reliance on an "agreement given by the Holy See ... for the consecration of one bishop."

Libreville is the capital and largest city of Gabon. Occupying 65 square kilometres (25 sq mi) in the northwestern province of Estuaire, Libreville is a port on the Komo River, near the Gulf of Guinea. As of the 2013 census, its population was 703,904.