HistoryData
Historical ConflictSan Antonio

Siege of Béxar

The Siege of Béxar was a key early campaign of the Texas Revolution, resulting in a Texian volunteer army capturing San Antonio from Mexican forces.

Duration & Scope

1835 ongoing

< 1 year

Key Facts

Year
1835
Conflict
Texas Revolution
Initiated by
Texian volunteer army under Stephen F. Austin
Mexican commander
General Martín Perfecto de Cos
Preceded by
Battle of Gonzales (October 1835)

Strategic Narrative Overview

Stephen F. Austin, a respected civilian leader with no formal military training, was elected commander of the assembled Texian volunteers. Santa Anna dispatched his brother-in-law, General Martín Perfecto de Cos, to San Antonio de Béxar with reinforcements to hold the city. On October 13, 1835, Austin led the Texian forces toward Béxar and initiated a siege, surrounding the Mexican garrison and cutting off their ability to operate freely in the region.

01 / The Origins

Tensions between Texas settlers and the Mexican government escalated sharply as President and General Antonio López de Santa Anna's rule grew increasingly authoritarian. Texians, disillusioned with centralist policies, reached a breaking point in early October 1835 when Mexican troops attempted to reclaim a small cannon from settlers in Gonzales. The resulting skirmish, known as the Battle of Gonzales, ignited the Texas Revolution and prompted volunteers to gather and form the Texian Army.

03 / The Outcome

The siege culminated in a Texian victory, with Mexican forces under Cos defeated at San Antonio de Béxar. This early success gave the Texian revolutionary movement control of a strategically important city and bolstered confidence among settlers. The fall of Béxar demonstrated that organized Texian volunteers could overcome professional Mexican troops, setting the stage for the broader and more intense campaigns of the Texas Revolution that followed.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Texian Army (volunteer settlers)
Key Commanders

Stephen F. Austin.

Side B

1 belligerent

Mexican Army (garrison at Béxar)
Key Commanders

Martín Perfecto de Cos.

Outcome
Texian victory; Mexican forces defeated and expelled from San Antonio de Béxar

Kinetic Engagement Axis

Major engagements timeline (1835–present)Timeline of major military engagements plotted chronologically.1835present1835Battle of GonzalesAllied1835Siege of BéxarAllied

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of San Antonio, United StatesMap of San Antonio, United StatesSan Antonio, United States