“Nearly 350 rebels were executed in the Goliad Massacre, and almost twice as many as were killed at the siege of the Alamo. The death toll would have been even higher if not for a Mexican woman known as the “Angel of Goliad” who convinced a Mexican colonel to spare the lives of approximately 20 doctors, orderlies and interpreters.

Santa Anna’s ruthless treatment of the captured soldiers had the opposite effect than what he intended. The “Napoleon of the West” was no longer seen as a brilliant military strategist but a cruel despot. The Goliad Massacre hardened attitudes toward Santa Anna throughout the United States and inflamed and unified the Texas resistance. Less than a month later, as [Sam] Houston prepared his men for the decisive Battle of San Jacinto that would earn Texas its independence, he concluded his impassioned speech with the rallying cry: “Remember the Alamo! The Alamo! The Alamo!” His men thundered a reply with an addendum: “Remember the Alamo! Remember Goliad!”

https://www.history.com/news/the-goliad-massacre-the-other-alamo