Romagna (Romagnol: Rumâgna) is an Italian historical region that approximately corresponds to the south-eastern portion of present-day Emilia-Romagna in northern Italy.
Thus the term Romania came to be used to refer to the territory administered by the Exarchate of Ravenna in contrast to other parts of Northern Italy under Lombard rule, named Langobardia or Lombardy.
Romagna is traditionally limited by the Apennines to the south-west, the Adriatic to the east, and the rivers Reno and Sillaro to the north and west.
Romagnol culture exerts a considerable influence over the Montefeltro historical region, on the borders between Emilia-Romagna, Tuscany, and the Marche.
[citation needed] In 295 BC, the Roman Republic won a decisive victory at the Battle of Sentinum against a coalition of Umbris, Senones, Samnites, and Etruscans.
Forum Livii and Caesena (Cesena) were razed to ground, and the region was looted by Lucius Cornelius Sulla's victorious army.
In 402, Emperor Honorius even moved the Western Roman Empire's capital from Mediolanum to Ravenna, mainly because of the region's defensive terrain.
The Empire could barely defend the region around Ravenna and Rome, connected by a narrow strip of land passing through Perugia, as well as a series of coastal cities.
This situation started to change in the late-15th century, when after their return to Rome from Avignon in 1378, stronger popes progressively reasserted their authority in the fragmented region.
Parts of Romagna were also seized by other powers, including Venice, and most notably the Republic of Florence, which took land up to Forlì and Cervia, building the famous city-fortress of Terra del Sole.
In 1500 Cesare Borgia, illegitimate son of Pope Alexander VI, carved out for himself an ephemeral Duchy of Romagna, but his lands were reabsorbed into the Papal States after his fall.
The Duchy of Ferrara was later annexed by the Papal States on the extinction of the main d'Este line in 1597, with the cadet branch retaining the Imperial fiefs of Modena and Reggio.
This situation lasted until the French invasion of 1796, which brought bloodshed (the massacre of Lugo, looting, heavy taxation, the destruction of Cesena University) but also innovative ideas in social and political fields.
Under Napoleonic rule Romagna received recognition as an entity for the first time, with the creation of the provinces of the Pino (Ravenna) and Rubicone (Forlì).
However, after joining the unification of Italy in 1860, Romagna was not awarded separate status by the Savoy monarchs, who were afraid of dangerous destabilizing tendencies in the wake of the popular figures cited above.