The name of the place referring to the lots of deer present many years ago in the forest of this area. That name has evolved over the centuries (from Mons Damarum-Monte to Daino-Mondaino, the word daino refers to the deer, the animal).
It is presumed that the Etruscans founded the town. They won the umbrian and settled in the valleys of the Apennines.
In the roman age the territory was divided in many villages, one of them is the Vicus Dianensis, famous for the presence of a temple dedicated to Diana, goddes of the hunt. In the successive periods Mondaino was the protagonist of the most important historical events in that area. In the Lombard period was built a church dedicated to Sant Apollinaire Martyr, which testifies the role of social and cultural center of the bulding.
Pietro Bennone, a rich man from Rimini, was the master of the castle in 1069. He gave the castle to San Pier Damiani. The alliance with the Malatesta family came in 1289, when Mondaino and many other castles passed by the noble family, encouraging their rise to power.
The trade of mineral salt, extracted from the Rio Salso river, favored economic development in the middle ages. It gave work to many shops through a dense sales network. The chronicles of the middle age relate that Mondaino was the “Country of the pacts”. In 1393 Carlo Malatesta signed the peace with the eternal enemy Antonio Da Montefeltro. In the following century, in 1459, Sigismondo Pandolfo Malatesta met the duke of Urbino Federico II for the same reason.
The meeting took place in the convent next to the Fornosino mount, founded by St. Francesco. In 1462, the peace treaty with the Malatesta was a distant memory.
So Federico conquered the castle of Mondaino and he donated it to the Church. The long domination of the Papal State was interrupted only twice: in 1523 the castle were sold for a few months to the Medici family; in 1797 it was conquered by Napoleone Bonaparte.
Now we have reached the threshold of the Constitution of the italian kingdom. During the nineteenth century, Mondaino participated in the riots of Rimini in 1845 with a large group of patriots. That country became a party of the italian kingdom in 1861, after the troops of Piemonte had crossed the Tavollo river to join Giuseppe Garibaldi in the battles of South Italy.