Main and Military Plazas Historic District - Credit: Wikimedia Commons
Presidio de Béxar was a Spanish fort built near the San Antonio River, located in what is now San Antonio, Texas, in the United States. It was designed for protection of the mission San Antonio de Valero and the Villa de Béjar. The Presidio de Béxar was founded on May 5, 1718 by Spanish colonial official Martín de Alarcón and his party of thirty-five soldiers. The Villa de Béjar is known for being the first Spanish settlement of San Antonio and consisted of the families of the Presidio Soldiers and those of the prior expeditions. It also served to secure Spain's claim to the region against possible encroachment from other European powers. Read more on Wikipedia
Source: en.wikipedia.org