The origins of Argoncilhe date back to the pre-Roman period, owing to the toponymy and archaeological findings, particularly in area of Aldriz. The origin of the community's name is uncertain: two versions with distinct etymologies exist. According to the first, Argoncilhe arises from areucillus, a diminutive of "areub", that evolved to arcucillus and arcucillis in Latin, and ultimately Argoncilhe. The second interpretation, points to the name of Argoncilhe developing from Dragoncellus, evolving into Dragunceli, Draguncelli, Dragoncelli, Dragonzell, Ecllesian Sancti Martini of Argoncilhi, St. Martin of Dragoncilhi. The oldest written document referencing Argoncilhe appeared in 1086, proving the donation to Sancha Bermudez, of several buildings of the villa of Eldriz to the Church of São Martinho. A few years later, in 1091, Ragui Ramirez and Ruderico Gunsalvez referred to the parish, in a letter of shares to D. Soeiro Formarigues, for property near the Outeiro of Pena, in the villa of Dragoncelli. There are references after 1100, with D. Soeiro Formarigues attempting to acquire the assets of the villa Dragoncelli that belonged to Elvira Gouviaz. Argoncilhe's medieval history is intrinsically linked to the early history of Grijó. In 1093, it was one of seven ecclesiastical parishes donated to the monastery of Grijó, along with Perosinho, Serzedo, Grijó, Travanca de Bemposta, São Miguel de Travaçô and Teirol. Similarly, it was donated by D. Bernardo, Bishop of Coimbra, and then in 1137, by Bishop João, to be included with the churches in the area of Porto transferred to the lands of Feira, or specifically, Argoncilhe, Perosinho, Serzedo and Grijó. This situation continued until 1686, when the Argoncilhe became ecclesiastically independent of the Convent of Grijó, in 1834. Throughout its history Argoncilhe has been associated with agriculture, although by the mid-20th century industry finally obtained a foothold, resulting in the expansion of mineral-based activities and development of a commercial activities. This was possible through the electrification of the territory, which did not take place until 1951. It allowed further expansion of agriculture and industrial modernization. On 14 April 1985, Argoncilhe gained the status of vila owing to the advancements in the latter part of the 20th century.
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Geography
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. A quiet community with good access, Argoncilhe is situated from Santa Maria da Feira, in Espinho, from Gaia and from Porto.
Economy
As with most of the national territory, Argoncilhe was an agricultural area, an economy that persisted until the early 20th century. The first industries that arose were linked with forestry, and relatively small industries developed only after 1920–1930. By this time, the area became a major employer in enterprises associated with cooperage, resulting in the employment of many families and expansion of arts and construction. Further, the expansion of the tungsten mining and refining was an important milestone in the development of region resulting in the expansion of large businesses, but also emigration to Venezuela, Brazil, France and Germany.
Architecture
Argoncilhe guards many of its archaeological and religious "pearls", making the region an important tourist centre, primarily for its historical architecture. In addition to its prominent parochial church, the parish is known for the chapels of Sao Domingo, San Pedro de Sao Tome, the Senhora do Campo, and the Church of Christthe King. 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.
