The origins of Argoncilhe date back to the pre-Roman period, owing to the toponymy and archaeological findings, particularly in area of Aldriz (location of a Castro and several Romanesque villas).
The second interpretation, points to the name of Argoncilhe developing from Dragoncellus, evolving into Dragunceli (1086), Draguncelli (1091), Dragoncelli (1100 and 1102), Dragonzell (1114), Ecllesian Sancti Martini of Argoncilhi (1320), St. Martin of Dragoncilhi (1337).
The oldest written document referencing Argoncilhe appeared in 1086, proving the donation to Sancha Bermudez, of several buildings of the villa of Eldriz (Aldriz) to the Church of São Martinho.
Argoncilhe is located in the far north, surrounded by the communities of Grijó, Seixezelo, Olival and Sandim, civil parishes of the municipality of Vila Nova de Gaia, and Nogueira of Regedoura, Mozelos, Sanguedo, Lourosa and Fiães.
In addition, there are several archaeological markers that dot the countryside, including the millennial bridge of Roçadas and the picturesque water mills, all supported and maintained by the local authority providing an important historical identity.