 His assignments took the family to Durango and Zacatecas where his duties were supervising the mining of silver and gold.His whole family ended up in Nuevo León in the time period between 1596 and 1603, after completion of his military career.The family of Marcos Alonzo is included in the list of the 12 original founding families of Monterrey, which was founded in 1596 Almost all Falcon families around northern Mexico and Texas stem from this lineage, including Captain Blas María de la Garza Falcón, who was a Spanish Settler of Tamaulipas and South Texas.