Also a group of Biscayan and Portuguese headed by Martín de Gamón was incorporated, same that by rebel and troublemaker in 1563 he was ordered to give a club in the San Juan Valley.

"[4] Del Canto knew many lands: Chiametla, Copala, Sinaloa, Topiao Guatimapé, he walked through San Martín and Sombrerete, Chalchihuites and Sain, Nieves and Río Grande, through Nombre de Dios and Victoria, through Fresnillo and Zacatecas, through Cedros and Mazapil.

Probably on March 12, 1577, where Alberto del Canto was appointed mayor of the mines of San Gregorio and Extremadura Valley by commission of Mr. Martín López de Ibarra, governor of Nueva Vizcaya.

On May 29, 1577 Alberto del Canto carried out the foundation of "Minas de la Trinidad" as a town in Nueva Vizcaya, given the importance of the Silver vein.

The current valley of Saltillo was explored by Francisco Cano at the end of 1568 from Mazapil taking possession on behalf of Nueva Galicia.

"[6] and although the date is not indicated in this document, it is most likely that it was December 13, 1577, the feast of Saint Lucy of Syracuse,[7] as "mayor of the San Gregorio mines and the Extremadura valley."

Also in the Parral Document it says that Alberto del Canto, "following the order he was carrying ... (after populating Santa Lucía) pacified the town of Potosí and the Couyla valley."

He fought for the pacification of the Chichimecas, among whom he took numerous prisoners to work the mines of Santa Lucía (Monterrey) and San Gregorio (Cerralvo), which he owned.

[9] Alberto del Canto, at the end of 1582, received without opposition Luis Carvajal in his second stay in America, but now with the authorization of King Phillip II his project to colonize lands north of New Spain.

The new territory of the foundation of the Nuevo Reino de León, whose jurisdictional limits started from the port of Pánuco (Veracruz), north of the current Veracruz, which extended 200 leagues to the west and another 200 leagues to the north, thus forming a square that would have 800 kilometers (500 mi) per side; however, this extension would invade the jurisdictions of the Kingdom of Nueva Vizcaya, to which the almost recently founded town of Santiago del Saltillo belonged.

In 1578, Alberto del Canto was ordered to be apprehended by Dr. Jerónimo de Orozco, president of the Royal Audience of Guadalajara, because he had entered Saltillo in the Nueva Galicia district, in principle among the Indians who were at peace, and that he took as a slave and for other serious crimes.

Father Baldo Cortés, first chaplain of the town of Saltillo and one of its founders, to defend the original peoples of the stabilization confronts the Spanish soldiers, showing that such action were public offenses to God and would deny them absolution if they continued.

In 1589, Father Baldo Cortés denounced: "This gentleman Canto, before marrying Estefanía, lived in amasiato with his mother-in-law, the wife of Don Diego de Montemayor, which is why he killed her."

[12] Alberto del Canto was imprisoned by the Holy Office for being suspected of Judaizing (a very common position among the Portuguese), but he escaped and lived among the natives until he was found innocent and the charges were dropped.

Although some say that at that time the man had the full right to do so to wash off an injury, the truth is that Diego de Montemayor had to flee to the mines of San Gregorio Cerralvo, and then he had to appoint himself, again, as mayor from Saltillo to Alberto Del Canto.