Valbom is a city in Gondomar Municipality, Grande Porto

Grande Porto

Grande Porto or Greater Porto is a Portuguese NUTS3 subregion, integrating the NUTS2 region of Norte, in Portugal.It corresponds to 11 municipalities out of 16, the other 5 in Entre Douro e Vouga Subregion that constitute the larger Greater Metropolitan Area of Porto, centered in the city of Porto....

, Portugal

Portugal

Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 with about 15,000 residents. It was elevated to city status on 9 December 2004. For generations Valbom was a fishing village, due to its location by the river Douro

Douro

The Douro or Duero is one of the major rivers of the Iberian Peninsula, flowing from its source near Duruelo de la Sierra in Soria Province across northern-central Spain and Portugal to its outlet at Porto...

. Today, local crafts dominate the economy.

It was here, in the house called "Casa Branca", that the Convention of Gramido

Convention of Gramido

The Convention of Gramido was an agreement signed on 29 June 1847, in Casa Branca on the town square of Gramido, in Valbom, Gondomar, Portugal, to end the civil war of the Septembrists against the Cartists known as the Patuleia...

 was signed on 29 June 1847, ending the civil war of the Septembrists against the Cartists known as the Patuleia

Patuleia

The Patuleia, Guerra da Patuleia, or Little Civil War was a civil war in Portugal, so called to distinguish it from the 'great' civil war between Dom Pedro IV and Dom Miguel that ended in 1834. The Patuleia occurred after the Revolution of Maria da Fonte, and was closely associated with her...

.