According to the history that we have been able to recover, it seems that in the bottoms next to the river -not in the Plad’ Almatret-, there were once Iberian villages; near the so-called “Partida de Escampillà” where numerous historical remains have been found: The so-called “Castle of the Moors” seems to have been built by the Romans when the peninsula was divided between the Ispania Citerior and the Ispania Ulterior, this castle is located at the top of a mountain range that divides the Escampillà from the ravine of l’Aiguamoll.

The so-called “Pedra Escampillà” is located near the castle of the Moors, is of Celtic origin that tells us that during the Gallic War a Celtic group settled near the area, to protect the Romans from military warlords Indibil and Mandoni, the stone of religious meaning has engraved an inscription that says “CONIAGELLIETAR” which may mean “colony founded by Gellitar”. Then there are the Visigoths (from Europe), who populated and dominated the peninsula until the arrival of the Arabs. In 1149 Ramon Berenguer IV, founder of the Crown of Aragon, “recognizes” Lleida, Fraga and Mequinenza.

Given the proximity of Almatret to these population centres, we must think that the village was abandoned by the Arabs at this time. Berenguer IV distributed the territory among the nobles who had helped him, this is how Ramon de Moncada was entitled to Aitona and Seròs, and was appointed Count of Aitona (the coat of arms of the Moncada can be seen above the door of the old prison of the village) Later, at the end of the thirteenth century, these lands became part of the Entença. This brings us to the date of 1301, when the “Town Charter” of Almatret is signed.