Umbria is named after an Italic people, the Umbri, who were gradually subjugated by the Romans in the 4th through the 2nd centuries BC. Although it passed the name on to the modern region of Umbria, the two coincide only partially. Roman Umbria extended from Narni in the South, northeastward to the neighborhood of Ravenna on the Adriatic coast, thus including a large part of central Italy that now belongs to the Marche; at the same time, it excluded the Sabine country (generally speaking, the area around modern Norcia) and the right bank of the Tiber, which formed part of Roman Etruria: for example Perusia (the modern Perugia) was not part of Roman Umbria; on the contrary Sarsina, Plautus birthplace, was considered to be "in Umbria", while today it is in the modern province of Forlì-Cesena, in Emilia-Romagna.