Jesuitical originally signified of or pertaining to the Jesuits; belonging to the Society of Jesus; Jesuit ( OED , again), the Jesuits being the Roman Catholic clerical order founded by Ignatius Loyola in 1534 as an intellectual bulwark against the Reformation.
Ignatius Loyola founded the Jesuit Roman Catholic clerical order in response to the reformation to guard the intellectual integrity of Catholics towards Christ, the Catholic church and service in the community.