I watched several documentaries on the middle ages a while back, and I remember one in particular about the sometimes vast holdings given to the church by various lords in return for varied concessions from the church and its allies. I remember there being a specific word for a region governed by the head of the church (often a bishop) instead of a local lord, but I can’t remember that name. I don’t think the word was Bishopric…
Diocese or prelature?
It’s also called a See.
It is indeed a diocese, which is also known as a bishopric.
Since we’re throwing around definitions.
Etymology: Middle English se, from Anglo-French sé, see, from Latin sedes seat; akin to Latin sedēre to sit — more at sit
Date: 14th century
1 a archaic : cathedra b : a cathedral town c : a seat of a bishop’s office, power, or authority 2 : the authority or jurisdiction of a bishop