To the north of the Church, in what could have once been a Roman villa, there are remains of walls and elements of a basilica, which might have been the see of the Bishopric of Magnetum, probably from the Swevi period.
In the 90s, during archaeological excavations on the north side of the churchyard, a Gothic image of Saint Anthony, in limestone, with traces of polychrome, was also found.
The construction of a housing unit in the Quinta dos Padrões, more than six decades ago, has brought to light a number of archaeological remains indicating the existence, on that same location, of buildings probably from the late-Roman period. Fragments of pottery, loom weights, tegulae and imbrex, bricks and pipes reveal the importance of the site.
The later emergence, upon the opening of the vineyards, of Visigoth capitals, anthropomorphic sarcophagi, a polygonal vat and several carved stones with medieval decorations, leads one to consider the existence of a temple from a later period.
Later on, archaeologists found traces of common Roman ceramics, Hispanic sigillata and "claras D", Pompeian red ceramics and fragments of a fourth century lucerne in the location where the football field was opened, adjacent to the Quinta dos Padrões, elements that contribute towards the definition of the large area of dispersal of a late-Roman village.
Meinedo would have evolved from a fortified village at the site where the cemetery is today, with a relevant importance in Roman times.
In 1991, archaeological excavations revealed a circular apsidal structure belonging to a primitive pre-Romanesque temple. The extension of the path behind the football field led to the emergence of many ceramic fragments that indicate the high probability of further archaeological remains.
The excavations carried out have uncovered the foundations of part of a housing structure with four incertum opus walls, as well as an estate consisting of common use ceramics, including fragments of dolium, concave plates for cooking, fragments of jars and water-pot wings.
Worth noticing is also the existence of two fragments of terra sigillata, of Hispanic nature, one belonging to the brim of a plate of shape no.4, datable between the last third of the 1st century AD and the beginning of the second century, dating corroborated by the second fragment.
In that same place, fragments of decorated thin grey pottery, polished, a fragment of a cylindrical tube and a green glass cup, which dates back to a time period between Tiberius and Nero, with prevalence in the Flavian period. These findings prove the existence of a Roman village in Meinedo in the mid-first century.