Amongst the issues was the free trade policy of the regent General Espartero and the damage it was causing to the textile industry and the livelihood of workers.
[1] Another simmering issue was the tax required to be paid for bringing food into the city (Catalan: drets de portas).
[1]: 122 The local militia (Patuleyas) also took part and by the 15th the streets had been barricaded and the army had to take refuge in the Montjuic Castle and Parc de la Ciutadella after suffering possibly up to 600 dead and wounded.
[3][4] The indiscriminate artillery bombardment of the city was made from Montjuïc under the command of Captain General Antonio Van Halen.
A new revolt the following year, called the Jamància, led to another bombardment, this time focused on the shipyards and the walls causing 335 deaths and leading to 40,000 people fleeing the city.