Aside from the loyalty of its supporters, the Minho derby against Vitória de Guimarães is a match that both sets of fans eagerly await. This match is more than football – it is a way people from the north view each city. The derby is one of Portugal's most intense matches, and children under 13 are restricted from entering unless an adult is with them. The rivalry goes back to when the City of Braga was the ancient capital of Gallaecia and the largest Portuguese city by the time the Kingdom of Portugal was formed by Afonso I of Portugal. At that time, Guimarães became the seat of the King and nobility, whereas the city of Braga remained the centre of trade and religious power (the largest city and seat of the Archbishop).