During his time in office, he mostly attended to ecclesiastical duties, but did occasionally serve as a royal administrator.

Though offered positions of influence, he declined them that he might be free for ecclesiastical duties.

This kind of diplomatic services for the young Duchy kept him from fulfilling his ecclesiastical duties for a long time.

Duncan holds a number of ecclesiastical and civic duties.

That spring, poor health caused the newly elected bishop to take an extended leave of absence, resuming ecclesiastical duties April 1, 1909.

He instead concentrated on his ecclesiastical duties, including charity to the poor and donating to the Dominicans.

Scrope combined his ecclesiastical duties with involvement in secular matters.

Morcillo then returned to his ecclesiastical duties as archbishop of Charcas.

In addition to his ecclesiastical duties, he served as a commissioner for the Domesday Book.

He was released as a general authority and from full-time ecclesiastical duties in October 1992.