Prelate:
A bishop or other high ecclesiastical dignitary. [Oxford Dictionaries]
Noted in “When the Vatican faces a major sex-abuse scandal, he’s the man the pope sends in“, Chico Harlan, WaPo:
He points to past papal quotes as guiding wisdom for handling the crisis. He chides the church gently, prescribing reforms for handling complaints, urging prelates to listen more openly to victims. He speaks about the importance of transparency and encourages church officials to cooperate with civil authorities, but his own investigations are fully in-house, and not even summaries of his findings are made public.