Cristóbal excelled at his studies of philosophy and theology, and gained an extensive knowledge of Latin language and literature.

[4] The King Carlos IV of Spain appointed him in 1793 Master of Philosophy and Policy their pages knights, and later professor of Latin to the Prince of Asturias, with the dignity of Cantor (chantre) of Plasencia.

When Carlos IV and his son Fernando VII left for Bayonne to meet Napoleon, Bencomo returned for a while to Tenerife until 1814.

In the same year, Bencomo was given the title of Titular Archbishop of Heraclea,[1] in partibus by Pope Pius VII, being sponsored in the consecration by the Infante Carlos, Count of Molina, who gave him a pontifical gift.

The historical significance of the creation of the Diocese of San Cristóbal de La Laguna and the pivotal role Bencomo played are illustrated by the fact that attempts to establish a diocese based in the island of Tenerife dated back to the early sixteenth century, immediately after the completion of the conquest of the Canary Islands by the Crown of Castile.

Bencomo rejected this appointment, because he understood that the Inquisition was an institution called the disappearance, it did not have the sympathy of the majority of secular and ecclesiastical estates.

In Seville lent his assistance to the population in cases of great public calamities, and a cholera epidemic that hit the city in 1823.

In addition, Bencomo donated to the cathedral two relics: a piece of the mantle of St. Ferdinand III of Castile and a bone of St. James the Less.

[4] His brother Pedro José (1749-1828), who was a canon of the Cathedral of Santa Ana in Las Palmas de Gran Canaria, later became the first dean of Tenerife, following the creation of the diocese.

[4] In addition, Pedro José was royal commissioner together with Don Alonso de Nava y Grimón for the establishment of the University of San Fernando which was its first rector.

[4] He also had the titles of pensioned knight of the Royal and Distinguished Order of Carlos III, elected bishop of Astorga and a doctorate in sacred theology.

While others believe that that lawsuit started long before, namely with the collaboration of Aboriginal of Gran Canaria leader Fernando Guanarteme in the conquest of Tenerife.