It consisted of a series of violent incidents in opposition to Philip IV's taxation policy,[1] and the rebellion quickly evolved into a broader social protest against economic inequalities.
The motive of this measure, which contravened the chartered privileges of the domain and its tax exemption, was the need by the monarchy of Habsburg Spain to maintain its costly army in the wars of Northern Europe.
The population of Biscay reacted angrily against the representatives of royal authority, even going so far as to assassinate the procurator of the Court of Corregidor in October 1632.
The rebellion, which lasted on-and-off for more than three years, was definitively crushed in the spring of 1634, when the main ringleaders were arrested and executed.
Philip opted to pardon the rest of the rebels and to suspend the original order concerning the price of salt as a concession.