He married Maria Gertrudis Longoria, daughter of Juan Diego Longoria and Clara Maria Chapa in Cerralvo.
Maria Gertrudis Lopez de Jaen, born 1746.
Jose Cayetano Lopez de Jaen, born 1747. He married Maria Antonia Gonzalez, daughter of Francisco Gonzalez and Marcelina Salinas on 18 Feb 1775 in Mier.
Jose Miguel Lopez de Jaen, born 1755. He married Maria Rita Gonzalez, daughter of Francisco Gonzalez and Marcelina Salinas on 1 Sep 1780 in Mier.
Jose Antonio Lopez de Jaen, born 1756. He married Francisca Javiera de la Garza on 17 Jun 1777 in Mier. He owned Mier 20 (tract).
Miguel Lopez de Jaen, head of household, español
Maria Gertrudis Longoria, wife, española
Jose Cayetano Lopez de Jaen, son, 5 years old
Maria Gertrudis Lopez de Jaen, daughter, 4 years old
He died before 1757. He was 37 years old.