[1] He entered the Spanish royal army in 1810 as captain in the Distinguished Patriots of Ferdinand VII battalions created by Viceroy Francisco Javier Venegas, rose to colonel in 1813 and joined the Mexican independence movement in 1815.

[2] He married twice in his life; first to doña María Michaus y Oroquieta and the later to doña Ana María Ozta y Cotera, Marquise of Rivascacho, with whom he had a son: don José María Cervantes Ozta, who inherited his title and, after marrying doña Magdalena Ayestarán, fathered don Ignacio Cervantes Ayestarán, the last count of Santiago de Calimaya before Mexico's independence, who married Carmen Cauz and had not descendants; and Guadalupe Cervantes Ayestarán who married Don Francisco Cauz and whose descendants would have inherited the titles.

1802, and according to María Concepción Amerlinck, it's attributed to Ignacio Remigio Ayala,[3] author of a portrait of Manuel Valdés (a famous printer and publisher) and several other works that hanged in 1807 at the Convent of La Merced, in Mexico City.

[4] The portrait —measuring 83.82 by 63.8 centimetres (33.00 in × 25.12 in) and painted in oil over canvas— shows Cervantes with his upper head shaved, wearing a green silk dress coat and white vest embroidered with flowers in Neoclassical style, lace frill and sleeves, and holding a tricorn black hat with his left hand while keeping his right hand inside the coat at heart level; a posture common in male portraits of the period according to the Brooklyn Museum.

[2] According to Amerlinck, his stiff posture and tube-like rendering of his arms indicate an early search for abstraction pursued by some local artists of the period.