Which person formed XXX?
Society of Saint Pius X
The Society of Saint Pius X (Latin: Fraternitas Sacerdotalis Sancti Pii X; Spanish: Hermandad Sacerdotal de San Pio X; also informally known as the SSPX) is an international priestly fraternity, founded in 1970 by the French Roman Catholic Archbishop Marcel Lefebvre who held the following juridical positions:
Marcel Lefebvre