A dean, in an ecclesiastical context, is a cleric holding certain positions of authority within a religious hierarchy. The title is used mainly in the Catholic Church, the Anglican Communion, and many Lutheran denominations. A dean's assistant is called a sub-dean.
Portrait of Dutch Deacon Jacobus Johannes Graaf (1839–1924)
A chapter is one of several bodies of clergy in Roman Catholic, Old Catholic, Anglican, and Nordic Lutheran churches or their gatherings.
The chapter house of the Cathedral of Toledo.
The chapter room of the Cathedral of Pamplona.
Dean William Dimmick and other canons of St Mary's Cathedral in Memphis, Tennessee, in 1960.
The group photo at the 2006 general chapter of the Premonstratensians.