Garmendia Leal Fundadores de Montemorelos
http://www.raullongoria.net/Genealogy/FamilyTree/b26.html#P3850
General Alonso de Leon “El Mozo”
 He was born in Villa de Cadereyta, Nuevo Leon in 1639. He was the son of Alonso de Leon y Josefa Gonzalez. His occupation was agriculture and livestock. He married Agustina Cantu and they had seven children, Alonso, Juan, Santiago, Ines, Mateo, Juana and Andres. In 1667 he was named Mayor of Cadereyta, position that he served for eight years. After that position Alonso was named “Encomendadero”, in which he help in the transformation of Indians to the catholic religion. During the period of 1668-82 he was known for the pacification of indians. In 1682 Alonso was named Sargento Mayor and by the end of that year governor of Nuevo Leon, position that he served until 1684. “El Mozo” wrote the book “Derrotero Diario y Demarcacion del Viaje”, in which he described the trip to the Bahia del Espiritu Santo looking for French settlers. In 1687 the Viceroy named Alonso governor of the Coahuila Republic with the mission to start new towns and once again help in the indian pacification. “El Mozo” headed other expeditions looking for French settlements and during those trips he named Rio Nueces, Rio Hondo, Rio del Leon, Rio Nuestra Señora de Guadalupe and Rio San Marcos. General Alonso de Leon died on March 21, 1691. The first exploration of “El Mozo”was the south of the Rio Grande. He was one of the first explorers in San Juan de los Esteros Hermosos (Matamoros) and the one that brought Fray Diego de Orozco who made possible the first mass in Matamoros.