[citation needed] The chance came when the Peninsular War took place in Spain, with the king Ferdinand VII being taken prisoner by Napoleon.

They gathered a group of sympathizers in the Plaza, and the bulk of the Cabildo, the priest of the city, the Real Audience and the Consulate appeared at the Fort, requesting Liniers's resignation.

The peninsular military groups that supported it were disbanded, remaining only the ones composed by Criollos, who increased their political power in the city.

This approach was rejected by Vicente Fidel López, who described Álzaga as highly pro-Spanish, decided monarchist and keeper of the Spanish integrity against the goals of the Criollos.

[2] He interpreted the events as mere domestic policy, a dispute about who was more loyal to the king, and deemed Álzaga as counter-revolutionary for acting against the goals of the factions that would eventually prevail in the May Revolution a year later.