Mexican War of Independence the Congress of Chilpancingo, which gave the insurgency its own legal framework. After the defeat of Morelos, the movement survived as a guerrilla war under the leadership of Vicente Guerrero. By 1820, the few rebel groups survived most notably in the Sierra Madre del Sur and Veracruz. The reinstatement of the liberal Constitution of Cadiz in 1820 caused a change of mind among the elite groups who had supported Spanish rule. Monarchist Creoles affected by the constitution decided to support the independence of New Spain; they sought an alliance with the former insurgent resistance. Agustín de Iturbide led the military
Mexican War of Independence rule until the Hidalgo revolt of 1810. Elites in Mexico City in the seventeenth century did force the removal of a reformist viceroy, the Marqués de Gelves, following an urban riot in 1624 fomented by those elites. He attempted to eliminate corrupt practices by creole elites as well as rein in the opulent displays of the clergy's power, but ecclesiastical authorities in conjunction with creole elites mobilized urban plebeians to oust the viceroy. The crowd was reported to shout, "Long live the King! Love live Christ! Death to bad government! Death to the heretic Lutheran [Viceroy Gelves]! Arrest the viceroy!"