Vialonga is a town and ''

freguesia (), usually translated as "parish" or "civil parish", is the third-level administrative subdivision of Portugal, as defined by the 1976 Constitution. It is also the designation for local government jurisdictions in the former Portuguese over ...

'' (civil parish) in the municipality of

Vila Franca de Xira Vila Franca de Xira (), officially the City of Vila Franca de Xira (), is a city and municipality in the Lisbon District in Portugal. The population in 2021 was 137,659, in an area of 318.19 km2. Situated on both banks of the Tagus River, ...

Portugal Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...

. Its population in 2021 was 21,261.

History

The land where present-day Vialonga stands was occupied by humans in prehistoric ages, as evidenced by the

dolmen A dolmen, () or portal tomb, is a type of single-chamber Megalith#Tombs, megalithic tomb, usually consisting of two or more upright megaliths supporting a large flat horizontal capstone or "table". Most date from the Late Neolithic period (4000 ...

cemeteries in Monte Serves and Casal do Penedo in the Vialonga parish. Other prehistoric religious objects, ornaments, metallic weapons and ceramics have been found in the area. It is believed that the settlement in this area comes from the times of Moorish rule in the Iberian Peninsula. Over the centuries, the settlement had various subtle changes in its name: Vila Longa, Vila-Longa, Via Longa, Via-Longa, until the current form "Vialonga". In 1852, the ''

'' of Vialonga was integrated in the Olivais municipality. After a restructuring of the

Lisbon Lisbon ( ; ) is the capital and largest city of Portugal, with an estimated population of 567,131, as of 2023, within its administrative limits and 3,028,000 within the Lisbon Metropolitan Area, metropolis, as of 2025. Lisbon is mainlan ...

municipality in 1886, Vialonga became part of the

municipality. On 12 July 1985, the locality of Forte da Casa, until then part of the Vialonga ''freguesia'', became a new ''freguesia''. On 24 September 1985, Vialonga was promoted to the category of town (''vila''). In November 2014, Vialonga was one of the locations most affected by a Legionella outbreak in the Vila Franca de Xira municipality.

References

External links

Junta de Freguesia Vialonga
(in Portuguese) {{Freguesias of Vila Franca de Xira Freguesias of Vila Franca de Xira