Marcel François Marie Joseph Lefebvre (French: [maʁsɛl fʁɑ̃swa maʁi ʒɔzɛf ləfɛvʁ]; 29 November 1905 – 25 March 1991) was a French Catholic archbishop who greatly influenced modern traditional Catholicism. In 1970, he founded the Society of Saint Pius X (SSPX), a community to train seminarians, in the village of Écône, Switzerland. In 1988, he was excommunicated from the Catholic Church for consecrating four bishops against the express prohibition of Pope John Paul II.
