However, Antonio Morales Goméz and Carlos Pérez Maldonado have stated, without proving it, that Montemayor was born in the year 1530.
[2] Montemayor is credited with the founding of Monterrey, the capital of the northeastern Mexican state of Nuevo León, on September 20, 1596.
Montemayor brought forty people with him from Saltillo to populate Monterrey; nine married couples, three men without families, fourteen boys, four girls, and one Indian named Domingo Manuel.
[2][5] During the Chichimeca War in 1550, Montemayor was often away from his third wife, Juana Porcallo de la Cerda, and her attention soon focused on Alberto del Canto, only a few years her elder.
Montemayor fled into the wilderness to the north, but was eventually cleared of all charges (perhaps because a law at the time allowed a man to kill his unfaithful wife).