On June 13, 1691, Franciscan priest Damián Massanet and governor Domingo Terán de los Ríos reached the Coahuiltecan village of Yanaguana. Arriving on the feast day of Saint Anthony of Padua, Massanet celebrated Mass beneath a large tree and renamed the local river and valley San Antonio. This naming established a vital geographic anchor that, nearly three decades later, would serve as the foundation for a strategic chain of Spanish missions along the fertile Texas frontier.
In 1731, the East Texas mission Massanet had originally founded in 1690—Mission San Francisco de los Tejas—was formally reestablished more than 260 miles to the southwest along the San Antonio River. Reborn as Mission San Francisco de la Espada, this relocation consolidated Spanish military and religious power against growing French pressure from Louisiana. The strategic move secured the vital trade networks and colonial communities that ultimately allowed the historic settlement to evolve into the modern city of San Antonio.
