First Mexican Empire

First Mexican Empire
TownDown · Public domain · source
Conventional long name	First Mexican Empire
Native name	Imperio Mexicano
Capital	Mexico City
Official languages	Spanish
Era	Post-colonial
Status	Empire
Government	Monarchy
Title leader	Emperor
Leader1	Agustín de Iturbide
Year start	1821
Year end	1823
Date start	27 September 1821
Date end	19 March 1823

First Mexican Empire was a short-lived imperial monarchy that emerged after the collapse of Viceroyalty of New Spain following the Mexican War of Independence. Proclaimed in 1821 and headed by Agustín de Iturbide, it sought international recognition and internal consolidation while confronting regional uprisings, political factionalism, and diplomatic pressures from actors such as the United Kingdom, United States, and Spain. The empire's institutions and crises shaped the early Mexican state and led directly to the establishment of the First Mexican Republic.

Background and Independence movement

The origins trace to late colonial tensions within the Viceroyalty of New Spain involving peninsular elites, criollo deputies, insurgent leaders, and clerical authorities. Key figures and events included Miguel Hidalgo y Costilla and the Grito de Dolores, the insurgency of José María Morelos, the guerrilla campaigns of Vicente Guerrero, and the eventual royalist turn of Agustín de Iturbide. Political currents such as the 1810 uprisings, the capture of Morelos at Tepecuacuilco, the promulgation of the Sentimientos de la Nación, and the struggle around the Congress of Chilpancingo intersected with imperial developments in Napoleonic France and the restoration of Fernando VII of Spain. The 1820 Spanish Liberal Triennium and the return of the Cádiz Cortes altered loyalties among colonial elites, prompting negotiations like the Plan of Iguala and the military agreement known as the Treaty of Córdoba.

Formation and Coronation of Agustín de Iturbide

After the united royalist–insurgent proclamation of the Plan of Iguala in February 1821, the Army of the Three Guarantees under Agustín de Iturbide and Vicente Guerrero marched into Mexico City on 27 September 1821, culminating in the sealing of independence with the Treaty of Córdoba between Iturbide and Spanish envoy Juan O'Donojú. Political dynamics involved the Viceroyalty of New Spain remnants, clerical endorsement from figures like Fray Servando Teresa de Mier, and conservative factions seeking a monarchical solution resembling European models such as the Bourbon and Habsburg houses. Imperial coronation plans referenced precedents like the Coronation of Napoleon and entailed outreach to foreign royal houses, including overtures to the House of Bourbon and offers to members of the Spanish royal family. Facing resistance and factional pressure, the Constituent Congress declared Iturbide Emperor with the regnal name Agustín I and organized a coronation combining liturgical rites in Mexico City Cathedral and ceremonial protocols influenced by Roman Catholicism, Spanish ceremonial, and European monarchical custom.

Government, Administration, and Constitution

The imperial governance framework relied on decrees from the imperial court, ministerial appointments, and the Provisional Government Junta mechanisms left by independence negotiators. Administrative continuity invoked institutions from the colonial era such as Audiencias and municipal cabildos, as well as reforms toward centralization proposed by conservatives in Congress. Legislative struggles included quarrels between the imperial executive and the Congress of the Union over prerogatives, representation of provinces like New Galicia, Yucatán, and Texas, and debates over the adoption or suspension of constitutional charters inspired by models like the Spanish Constitution of 1812 and constitutional monarchies in Portugal and United Kingdom. Financial administration confronted debts from the Bourbon period, wartime expenditures tied to the Mexican War of Independence, and taxation controversies involving customs at Veracruz and land tenure disputes in provinces such as Morelos.

Domestic Policies and Internal Conflicts

Iturbide's regime implemented policies affecting the military hierarchy, clerical privileges, and landholding elites while attempting to stabilize postwar society. Tensions with republican liberals such as José María Luis Mora and provincial leaders stimulated rebellions in regions including Vera Cruz, Querétaro, and Puebla. Royalist remnants, guerrilla bands associated with Guerrero, and federalist proponents like Leandro Fernández de Moratín—and opponents in the army such as Antonio López de Santa Anna—engaged in conspiracies and uprisings that undermined imperial authority. Economic dislocation from wartime devastation affected agricultural centers in Jalisco and mining districts like Real del Monte and sparked legislation on taxation, public credit, and property rights debated in the imperial legislature. Social actors including the Catholic Church, secular clergy, indigenous communities in regions like Oaxaca and Chiapas, and urban guilds in Puebla City shaped responses to imperial policy.

Foreign Relations and Recognition

Diplomatic recognition was a central objective: the United Kingdom and United States navigated commercial opportunities and ideological caution before extending de facto or de jure acknowledgment, while Spain initially refused recognition and contemplated reconquest under the restored Bourbon monarchy. Envoys and diplomats such as Edmund Watkins and representatives from the Holy See and various European courts negotiated trade agreements and maritime arrangements affecting ports like Veracruz and Cabo San Lucas. The empire sought to secure legitimacy through treaties, petitions to monarchs of the House of Habsburg and House of Bourbon, and engagement with networks of British merchants and French consuls; foreign-born officers and émigré veterans from the Napoleonic Wars influenced military organization. International questions over claims in Texas, relations with indigenous nations on the northern frontier such as the Comanche, and the status of Cuba and Puerto Rico featured in diplomatic correspondence.

Decline, Abdication, and Transition to the Republic

Political fragmentation, financial insolvency, and military insubordination accelerated the empire's collapse. Key moments included the resignation of ministers, the uprising led by Anaya-aligned conspirators and provincial juntas, and decisive pronunciamientos by figures such as Antonio López de Santa Anna and Vicente Guerrero in favor of republicanism. Congress reasserted authority, promulgated resolutions revoking imperial decrees, and declared the throne vacant; facing isolation and the Imperial Decree controversies, Agustín I abdicated and went into exile. The abdication set the stage for the proclamation of a federal republic under the Provisional Government Junta and later elections that produced leaders like Guadalupe Victoria and the formal establishment of the First Mexican Republic. The aftermath involved trials, execution debates surrounding Iturbide's return, the reconfiguration of provincial politics in Nuevo León and Chihuahua, and long-term legacies in constitutionalism, military politics, and Mexican nationhood.

Category:Former monarchies Category:19th-century Mexico