Chancellor (ecclesiastical)
Chancellor is an ecclesiastical title used by several quite distinct officials of some Christian churches. In some churches, the chancellor of a diocese is a lawyer who represents the church in legal matters.
Catholic Church
In the Catholic Church a chancellor is the chief record-keeper of a diocese or eparchy or their equivalent. Normally a priest, sometimes a deacon or layperson, the chancellor keeps the official archives of the diocese, as a notary certifies documents, and generally manages the administrative offices of a diocese. They may be assisted by vice-chancellors. Though they manage the paperwork and office, they have no actual jurisdictional authority: the bishop of the diocese exercises decision-making authority through his judicial vicar, in judicial matters, and the vicar general for administrative matters.Church of England
In the Church of England, the Chancellor is the judge of the consistory court of the diocese. The office of diocesan chancellor technically combines that of Official Principal with that of Vicar General. The office was also known historically in some dioceses as Commissary or Commissary General, and Commissary General remains the usual title in the Diocese of Canterbury.In Church of England cathedrals, the Canon Chancellor is one of the canons of the cathedral who has a particular responsibility for matters of education and scholarship, often acting as the cathedral librarian and archivist. The Chancellor is generally one of four chief dignitaries in the cathedral chapter, the others being the Dean, the Precentor and the Treasurer.