Clergy were the leaders within a religion.
In 1400, Latin was used by the English clergy. (AUDIO: The Doctor's Tale)
The Supreme Pontiff of Time was a rank held by the leader of the clergy on Gallifrey. (PROSE: Prisoners of the Sun)
Cardinal Richelieu was a French clergyman on fairly intimate terms with King Louis XIII. (AUDIO: The Church and the Crown)
Matthew Townsend was a member of the clergy with an interest in scientific advancement. (AUDIO: Zagreus)
In the 17th century, a local clergyman saw Hila Tacorien, and wrote that "her presence was accompanied by a dreadful knocking as if the Devil himself demanded entry." (TV: Hide)