Complex sentence: Poggio Mirteto is a "comune" (municipality) and former Catholic bishopric in Sabina in the province of Rieti (formerly part of the province of Perugia) in the Central Italian region Latium, about northeast of Rome and about southwest of Rieti.
Split into simpler sentences: Poggio Mirteto is a "comune" (municipality) and former Catholic bishopric in Sabina in the Central Italian region Latium. Administratively Poggio Mirteto is in the province of Rieti (formerly part of the province of Perugia) and geographically this municipality is about northeast of Rome and about southwest of Rieti.