Given the task definition and input, reply with output. In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: When the convention adjourned on April 13, Austin went directly to San Antonio de Bexar to meet with Seguin. Seguin called a series of meetings, held from May 3 to 5, for prominent locals to discuss the convention proceedings. He was the only Bexar resident to fully support separate statehood. Other residents suggested that the capital of Coahuila y Tejas should be moved to San Antonio de Bexar, giving Texas more power. There was precedent for this; under Veramendi, the capital had just been moved from Saltillo to Monclova. If the legislature rejected the move, these residents vowed to support separate statehood.A third group of residents believed that the convention, like its predecessor, was illegal. Under their interpretation of the laws, only the state legislature would be able to petition the Mexican Congress for such a drastic change. Austin argued that the laws really meant that no one could petition on behalf of the people unless the people had been consulted, and the convention served as that consultation. The meetings ended with no agreement on how to proceed. Austin wrote that "the people here agree in substance with the rest of Texas, but differ as to the manner, and will express no opinion for, nor against".Seguin declined to accompany Austin. Miller also withdrew. Texas was in the throes of a cholera epidemic, and Miller, a physician, felt it his duty to stay and tend the sick. Austin then visited Goliad but was unable to attract any more Tejano support. He chose to go to Mexico City alone; he had visited several times and had established a good reputation among government officials. Although he was warned that his reception would likely be poor, he ignored suggestions to delay his journey.
What is the last name of the person who went to Mexico City alone?