Located in the immediate hinterland of the Tyrrhenian coast of the extreme south of Lazio, at the foot of the Aurunci Mountains, the city extends over the very fertile plain of the same name (so-called Piana di Fondi).
The aquifers of Monte delle Fate and Monte Calvilli constituted, in the past, a problem of swamping but today, in addition to giving rise to the picturesque small Coastal Lake (Natural Monument), they are at the service of one of the most productive agricultural areas in Italy. Europe feeds a large fruit and vegetable market (and a large part of the capital’s daily consumption).
The first city (Fundi, founded by the Aurunci) became of the Volsci and then passed to the Romans in the 4th century. to. C., later receiving (in 188 BC) full ‘citizenship’. Already in ancient times, in a strategic position halfway between Rome and Naples (near the Garigliano, the historic natural border with Campania), it was found, in Roman times, on the route of the Via Appia; in this area the famous Cecubo wine was produced, much loved by the Romans. According to Suetonius, Livia Drusilla, wife of Augustus and mother of Tiberius, was born in Fondi.
After a period of occupation by the Lombards, from 846 it was the Saracens who held it for thirty years until their defeat (by Pope John VIII) in the battle of Circeo (in 877). In these thirty years the coastal towns of lower Lazio had been sacked and razed to the ground by the Muslims, who actually had various complicities in the Italian principalities of the nearby South (something that had greatly worried Pope John VIII, a very particular combative character. al century Alessio Brugnoli).
Fondi, released, was then first assigned to the Byzantine Hypates of Gaeta, then passed to the Norman Kingdom which assigned it to the Dell’Aquila who assumed the title of Counts of Fondi. At the time of the Kingdom of Naples, in 1299 the last descendant of the Dell’Aquila marries Loffredo, nephew of Pope Boniface VIII of the Caetani family and this (who held the County of Fondi until 1494) will be the fundamental family for the subsequent civil history and urban planning of Fondi which in the meantime had become the capital of a vast territory. It was in Fondi that Onorato I Caetani reunited a Conclave in 1378 (Avignonese period) which elected the antipope Clement VII in opposition to the legitimate Pope (Urban VI) causing the Western Schism. At the end of the fourteenth century, with the arrival of Charles VIII, the County was granted to Prospero Colonna; the city, despite having lost importance on a political level, underwent further urban improvements.
A court of artists and writers settled here with Giulia Gonzaga (beautiful and young widow of Vespasiano Colonna, whom he married in 1526) (Fondi was nicknamed ‘Little Athens’). It was precisely as a result of a failed attempt to kidnap Giulia by the Saracen Barbarossa (who wanted to donate it to Suleiman the Magnificent) that Fondi suffered a devastating sack in 1534. After a second looting (at the end of the 1500s) and a sudden swamping of the plain, in 1636, there was a strong depopulation, accompanied by the transfer of ownership to families not always committed to the good of the city.
Thus began a strong decline for Fondi until the early 1800s when reclamation and mercantile initiatives allowed it to rise again.