He was born circa 1705. His father was Miguel Perez de Leon, and his mother was Beatriz Rodriguez de Montemayor.
In 1729, he requested a dispensation to marry Clara Maria de la Garza in Monterrey. They were married on 26 Apr 1729 in Monterrey. He was 24 years old. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, 57-15.
Procurador general de Cadereyta, 1730