Athanasius was the Bishop and Duke of Naples from 878 to his death. He was the son of Gregory III and brother of Sergius II, whom he blinded and deposed in order to seize the throne while he was already bishop.
- Occupation
- presbyter
- Position held
- Duke of Naples, bishop of Naples
- Citizenship
- Byzantine Empire
- Born
- 850
- Died
- 898
