The Siege of Béxar (aka Assault on San Antonio, Battle of San Antonio, Battle of Bexar, Storming of San Antonio de Bexar, Taking of Bexar) was the first major military action in the Texas revolution for independence. It occurred from October through December of 1835, with the final assault occurring Dec. 6-7, 1835.
San Antonio de Béxar was a city in Northern Mexico established in 1718 by the Spanish. That same year they established a mission there named San Antonio de Valero, which would later become known as the Alamo. It was a stop on El Camino Real de los Tejas, which was a trail originally created by the early indigenous peoples as a trade route. It was mapped by Spanish explorers and missionaries in the 18th century and stretched 2,500 miles from present day Mexico City, continuing through Saltillo, Monterrey, Laredo, San Antonio, and Nacogdoches, crossing the Sabine River, the border of Texas and Louisiana, and ending at Natchitoches. Camino Real, translated from Spanish, means “royal road” and it is also known as “the Kings Highway” and “the old San Antonio Road”. San Antonio de Béxar is now the city of San Antonio, located in the state of Texas in the southern United States of America.
Mexico was home to numerous people groups and, in the early 16th century, Spain conquered it and Spanish settlers began to mix with its population. In 1731, a group of 15 families from the Canary Islands settled in the Presidio San Antonio de Béxar, also known as San Fernando de Béxar. This was the first regularly organized civil government in the northernmost portion of the Mexican state of Coahuila (now the state of Texas). San Antonio de Béxar became the largest Spanish settlement in and the capital of the Spanish, later Mexican, province of Téjas.
To its north, the American colonies declared their independence from England in 1776 and the ensuing Revolutionary War lasted until 1783. Conflicts continued in the colonies until the final battle of the War of 1812, the Battle of New Orleans, in 1815. This is significant to the Siege of Béxar, as many of the men who fought in it were new citizens of Mexico from America, and the struggle for personal freedoms was fresh on their minds.
In 1810, Mexico rebelled against Spain, with a number of Americans fighting alongside Mexican citizens.
In 1821, Mexico earned its independence from Spain and, in 1824, it attempted to curtail the oppressive monarchy with the establishment of the Republic of Mexico under the Constitution of 1824.
Worried about rebellion and recognizing the importance of the city of San Antonio de Béxar as a strategic position militarily on the Camino Real, General Santa Anna dispatched his brother-in-law, General Martín Perfecto de Cos, to occupy it. In September of 1835, General Cos established his headquarters there with the stated purpose of ending resistance in Texas and arresting dissenters of Santa Anna’s policies.
The Siege of Béxar
In October of 1835, a group of Mexican citizens of Téjas and American immigrants volunteered to serve under the command of Stephen F. Austin and Edward Burleson and lay siege to the city. Two months later, on December 5, 1835, Ben Milam and Francis W. Johnson led two divisions in a surprise attack on the city. After four days of skirmishes, on the morning of December 9, Burleson accepted the surrender of General Cos and most of his equipment and weapons. Texian casualties numbered thirty to thirty-five, while Mexican losses totaled about 150.
It was fall in Texas and winter was coming, but diaries and letters of men who were there, including William Fairfax Gray and Colonel Juan Almonte, wrote it was shirt-sleeve weather. In his diary, Samuel Maverick wrote that a norther blew in Nov. 20 and the temperatures fell to near freezing for a week, returning to mild weather. As is usual for Texas, the weather began to get colder following the end of the Siege and, February 13, 1836, the Mexican Army, located south of the Rio Grande and marching to quell the Texan rebellion, recorded an atypical blizzard, but it lasted only a day.
Neither the Texians nor the Mexicans had supplies for prisoners, so General Cos and his men were released on their pledge to not continue to oppose the Constitution of 1824. Each man was allowed to keep a rifle and limited ammunition and they agreed to leave the territory north of the Rio Grande and not return to the fight. Cos broke the pledge when he returned in March of 1836 to command a column in the attack on the Alamo.
After the defeat of the Mexican Army at San Antonio de Béxar, most of the Texians returned home, but Santa Anna feared they would mount another offensive against his government and, in late February, intent on recapturing the mission, he arrived with between 1,500 and 1,800 men. This ensued with the Battle of the Alamo, culminating in its defeat and massacre of its defenders on March 6, 1836.
There were only two victories in the Texas Revolutionary War – the Siege of Bexar and the defeat of Santa Anna at the Battle of San Jacinto.
This site is dedicated to the men who fought in the Siege of Bexar and to their descendants – the Siege of Bexar Descendants.