As many of us have come to realize, the traditional genealogy connecting Lázaro Martín del Campo to Revilla del Campo is likely incorrect. 

Emerging evidence suggests that Bartolomé Martín del Campo and Lázaro Martín del Campo are two distinct individuals with no proven relation. While it was previously claimed that Lázaro was the same Bartolomé baptized in Revilla del Campo in 1605, the chronology is inconsistent. 

As Alfonso Martín del Campo Loza noted in his book "Memoria Documental y Gráfica de mi Apellido Martin del Campo", Lázaro was already established in Teocaltiche by 1618 and was a widower of Isabel Sánchez de Lara by 1623. A child baptized in 1605 could not have been a widower in 1623 with an established presence in Nueva Galicia by 1618. 

Recent findings point toward Herencia as the true origin: 

1) 1608 Record: I previously shared a 1608 record from Herencia showing a Lázaro Martín del Campo and his wife, María Díaz, acting as godparents: https://www.familysearch.org/ark:/61903/3:1:S3HY-6S69-D5H?view=fullText…;

2) The "Miguel Díaz" Connection: Jorge Barba identified that Miguel, a son of Lázaro Martín del Campo and María López de la Cruz, was registered as "Miguel Díaz" in the 1650 Jalostotitlán Census (Padrón). 

3) The Marriage Link: Jorge Barba subsequently located a marriage record dated February 8, 1587, in Herencia for the Lázaro Martín del Campo I found (son of Francisco Martín del Campo and Teresa Rodríguez) and María Alonso (Díaz). It is of utmost importance to mention that María’s parents were Miguel Díaz Avilés and Mari Díaz. 

While we cannot yet definitively prove the link, the timeline is highly compelling. 

If the Lázaro from Nueva Galicia was born circa 1590 to the couple in Herencia, he would have been 28 in Teocaltiche (1618) and a widower at 33 (1623). 

Furthermore, the naming of his son Miguel Díaz follows the tradition of naming children after their ancestors, in this case Miguel Díaz, father of María Alonso (also known as María Díaz). 

The proposed line is this one: 

1. Francisco Martín del Campo = Teresa Rodríguez 

1.1. Lázaro Martín del Campo = María Díaz/María Alonso, daughter of Miguel Díaz Avilés and Mari Díaz. 

1.1.1. Lázaro Martín del Campo = Isabel Sánchez de Lara = María López de la Cruz. 

Interestingly, Mariano González-Leal mentioned the possibility of the Herencia lineage as a footnote in Retoños de España en la Nueva Galicia but did not pursue it. This is a testament to his intuition and skills as one of the greatest genealogists; even without today’s digital tools, he sensed a connection that we are only now able to substantiate. 

For those interested in a deeper dive, Jorge Barba has detailed these findings in this video: https://www.youtube.com/watch?v=26PSzZwXEMM&t=6s 

Best regards, 

Erik Andrés Reynoso y Márquez