Final answer:
The Fredonian Rebellion ended with its rapid collapse after intervention from the Mexican army and forces led by Stephen Austin.
Step-by-step explanation:
The outcome of the Fredonian Rebellion, led by the Edwards brothers, was that it collapsed after a swift response from both the Mexican army and a force led by Stephen Austin. Outraged by the annulment of his agreement with the Mexican government over land rights, Haden Edwards took the local alcalde of Nacogdoches as a prisoner and declared the formation of the Republic of Fredonia.
However, his revolt did not last long, as the Mexican government sent its army to quell the rebellion. To demonstrate their loyalty, a force led by Stephen Austin also supported the Mexican government's efforts. This led to the rapid collapse of the rebellion, with the revolutionaries, including the Edwards brothers, fleeing Texas.