Sobre la bandera de la ciudad de Pamplona

The author transcribes the documents on the change of flag in Pamplona according to which a specialist in heraldry was consulted. He considered that the flag of Pamplona was blue, because when Don Carlos el Noble granted the Privilege of the Union in 1423, which is the moment that is considered the foundation of Pamplona, he defined the colours and components of the heraldic standard