1824

Commonly known as The Alamo Flag", 1835–1836 – Created in 1835, this flag was a reference to the Mexican constitution of 1824, in support of which the Texas rebels were fighting; supposedly flew at the Alamo. https://www.wikimediafoundation.org/

It has been said that this is not the flag that has flown at the alamo it was a tri color flag with two vertical gold stars in the center white panel. Per our Texas History buff.