Originally established on the San Gabriel River as the Presidio of San Francisco Xavier in 1751, it was moved to the present site in 1757 to protect the Mission Santa Cruz de San Saba. It was known as the Presidio de San Luis de Las Amarillas from 1757 to 1761. After March 1761, its name was Real Presidio de San Saba. The stone building was completed in 1761.