The least pretty of the plazas, Plaza de los Fundadores (Founders' Plaza) is where the city was born. On the north side is a large building constructed in 1653 as a Jesuit college. Today it houses offices of the Universidad Autónoma de San Luis Potosí. It was probably on this site that Diego de la Magdalena, a Franciscan friar, started a small settlement of Guachichiles around 1585.