In the following centuries, Coriano became the district capital of an area west of the Conca river, including Montescudo, Monte Colombo, San Clemente, Morciano di Romagna, and Misano.

[3] In September 1944, during World War II, one of the most deadly battles fought in Italy happened in Coriano, effectively razing the town.

His three children (Gianciotto, Malatestino of the Eye and Pandolfo I) they consolidated the power of the family, and they expanded the boundaries of the lordship castles and lands acquired by the Church of Ravenna and/or pulling them out to others (The Montefeltro).

Insufficient documents on the construction of the castle, but can be traced back to 1300, and the first renovations to 1144 (when Sigismondo Malatesta took care of the work in other rocks of Rimini).

The first description is from 1504 and, in this case, the administrator Malipiero: "Castle 8 miles away from Arimino, circumfenced by a wall switch 7 Cumulative high shoe, and corridor top 5 foot, turn 194 passes.

From 1800 to the Second World War, when military conflict caused major damage, the common fate of Coriano buildings of the fortress to various uses of a public nature.

After the war, in parallel to the abandonment of the population that moved to the coast, the castle was left in an advanced state of decay.

After a few urban interventions inappropriate in recent decades, rehabilitation and restoration of the fortress has taken place under the auspices of the Superintendency and the Fine Arts, the building making a positive recovery.

Until then, the lands of the Romagna were subject to arbitrary Manfredi (Faenza), the Ordelaffi (Forlì), Galeotto and Malatesta (Rimini).

In the same year (1355) Castrum Viciani rebelled in Rimini, to submit to the Holy See in 1358 Pope Innocent VI granted it to the Malatesta.

Part of its history it has in common with the events of Vecciano: for the same reason in 1355 he submitted to the Holy See, which in 1358, at the hands of Innocent VI gave it to Galeotto Malatesta.

Malatesta and was succeeded by the Venetians in 1517 was captured and sacked by the new ruler of the Duchy of Urbino, Francesco Maria della Rovere.

The construction of Castrum Ceresolo dates back to 1200 and its first two decades of the events of 1300 are related to the wars between the Guelphs (headed by Pandolfo Malatesta) and Ghibellines (the Counts of Montefeltro).