Skip to content
The War AtlasThe · War · Atlas

BATTLE // April 26, 1829

Battle of Márquez Bridge

LOADING MAP TELEMETRY…

Overview

The Battle of Márquez Bridge, fought on 26 April 1829, during the civil war between Unitarians and Federalists, resulting in a victory for the Federal Party forces of Juan Manuel de Rosas and the governor of Santa Fe Province, Estanislao López, over general Juan Lavalle, who had usurped the office of Governor of Buenos Aires Province.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Márquez Bridge was fought on 26 April 1829 during the ongoing civil conflict between Unitarian and Federalist factions in Argentina. Federal forces under Juan Manuel de Rosas and Estanislao López, governor of Santa Fe Province, defeated a Unitarian force commanded by Juan Lavalle, who had seized the governorship of Buenos Aires Province by usurpation. The Federalist numerical advantage was decisive, with 7,000 troops against Lavalle's 1,000. The victory weakened Lavalle's political and military position and reinforced Federalist dominance in the Buenos Aires region, advancing Rosas's consolidation of power in what would become one of the defining struggles of the Argentine Civil Wars.

Forces & casualties

Troop strength

  • Federalist7,000
    medium
  • Unitarian1,000
    medium

Federalist fielded a 7.0 : 1 numerical advantage

Commanders (3)

Federalist

Unitarian

Compare with sibling battle

6 options

Pick a battle to compare side-by-side

Related

6 sibling battles · 0 factions

Last verified June 2026
Cite this page →Suggest a correction →