Capou Agha is a Level 2 title for Ibrahim, a unique Governor in Civilization VI: Gathering Storm. It requires Serasker.
Effects
When established in a foreign Capital, Grievances Grievances from the city owner against you are reduced by 1 more per turn.
Civilopedia entry
The Capou agha is the captain of the gate and was one of the foremost positions for eunuchs at Topkapi Palace. Note that it is believed that Ibrahim Pasha was not a eunuch, despite possessing this title.