Its first titular patron is Saint Nicholas of Tolentine, but on December 31, 1576, its convento was referred to as La Casa de San Juan Bautista.

[3] Father Joaquín Martínez de Zúñiga, the prior from 1794 to 1797, noted that at his time the small convento was made of cut stone and had a tiled roof.

[4] The façade is arranged simply, with four rounded columns with Corinthian capitals supporting the pediment, dividing the entire front into three segments.

The flamboyance of the trefoil arched main doorway is matched by the swaying motion of the original pediment, and the volutes framing a circular window.

[2][4] Much renovation has been done to the church, one of which concerns the extension of the façade, transforming the original swaying motion of the pediment into the simple, triangular roofline seen today.

In recent years, a new, heavily carved wooden door depicting scenes from the life of Saint John the Baptist was installed in the main doorway.