Yes, some Catholics have rejected the changes introduced by the Second Vatican Council (1962–65), an ecumenical council that sought spiritual renewal for the Roman Catholic Church according to the theme of aggiornamento (Italian: “bringing up to date”). Those who rejected its changes include traditionalist Catholics who object to modernizations that were made to the celebration of mass, such as the use of vernacular languages instead of Latin. There have been some individuals and groups that were excommunicated by the church for causing schism—in particular, French archbishop Marcel Lefebvre, founder of the Society of St. Pius X. Limitations placed on the celebration of the traditional Latin mass by Pope Francis became a contentious issue in the 21st-century church.