“The black pope of the Jesuit order” is a derogatory reference to the Superior General of the Society of Jesus (the head of the Jesuit order). The Jesuits’ Superior General was called that because of his black cassock and the Jesuits’ presumed power and influence within the Catholic Church. As for the Bishop of Rome, he confesses to any priest he wishes (which might include the Jesuit Superior General if he is around when the pope wants to confess). As the pope himself ordinarily is the celebrant at any Mass at which he officiates, ordinarily he does not receive Communion from another but self-communicates.