This street market dates back from 1412. Its allowance was granted by King João I, by Royal Charter from 19th February of that same year, at the request of the Count of Barcelos Afonso, his son.

Over the years it has undergone several changes, varying its location, day, and time of year, until it was fixed on the spot where now takes place.

Held weekly, on Thursday.

On this day Barcelos is full of people who come to the fair for their weekly shopping, or simply to enjoy the party atmosphere and social life all "fair days" bring to the city and make from this an event of regional importance. This weekly market is considered one of the oldest and most traditional in northern Portugal, and it is a privileged stage to contact and experience the people and the culture from the Minho and from Barcelos in particular.