led their respective troops as the insurrection massified. Fearing that he would be executed, Ferdinand relented and gave way to the Constitution. As part of the ensuing reform, the constitutional government named O'Donojú Captain General of Andalusia and Valero de Bernabé accompanied him as adjutant. Meanwhile, in Mexico Iturbe led its own resistance against Spain, to whom he proposed the Plan de Iguala, which negotiated the establishment of a monarchy with ties to the Spanish Crown. The document was not approved by the Spanish Congress. This led to an increase in revolutionary actions, leading to the destitution of viceroy Apodaca and general Novella being given the authority. However, the Spanish decided to name O'Donojú as the new viceroy, who accepted expecting to negotiate peace in terms similar to the rejected proposals. The functionary left towards Mexico in 1821, and along him traveled Valero de Bernabé. Mexican War of Independence Joining the revolution; Chief of Staff However, the Mexican revolution was distinctly monarchic and supported by the Church. O'Donojú encountered a situation where the revolt was now the predominant force in the colony, and in which Novella refused to recognize him as viceroy. Eventually, and influenced by the circumstances that had led to the political environment he unsuccessfully tried to calm down the situation, but was met with resistance. Valero de Bernabé was inclined to support the independence cause and communicated this stance to him. While moving towards the capital, O'Donojú's forces were involved in some skirmishes with the revolutionaries and backed away towards Veracruz. He then approached the aristocratic Itúrbide and knowing of his monarchic sentiment, sent Valero de Bernabé and other officers to negotiate a treaty. The pacto de Córdoba was signed on August 24, 1821, proposing an independent monarchy led by the Spanish monarchy, in particular Carlos and Francisco de Paula. However, Ferdinand VII was focused on the Iberian affairs and forged an alliance with Louis XVIII to reverse the liberal Constitution, with the Congress taking over the evaluation and eventually voted against and nullified it. O'Donojú was considered a traitor by elements at Spain, facing the criticism of the count of Toreno and representatives of Moscoso and Espiga, while being supported by the Mexican deputies Lucas Alaman, Puchet and Lallave. Faced with this decision, O'Donojú and his allies defected Spain and traveled to the capital on October 26, a day later Itúrbide entered the city with the